The 3 causes of a P0446 code, are: - (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement. - (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister. - (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced.
Glad I could help out with the video. This job is not too technical, but it would be a good repair experience if people just allow more time in their day to do this, so that they can understand that things always take longer than what they think, to do all the repair work, and all the clean up, and all the finding of their tools, and vacuums, and extension cords, and changing clothes, and washing up, and a snack, and Spotify music on the remote speakers or smart phone :) or what ever you like to do to enjoy this mechanical work on your truck. Patience is the best tool, to complete it correctly, without any doubt. All of this is to remember how nice it is to drive the truck with no check engine light illuminating :)
2016 Crew cab .... jack up truck, put on jack stands ....you need to lower gas tank about 2 inches. Reach over driver side frame rail and work blindly (sense of feel only) to unplug and remove sensor.....rear tire does not need to be removed....i used a pick to unplug and remove at the same time, the sensor is friction fit, no screws or bolts.....real pain in the ass.....but it worked...
Installing this new fuel tank pressure sensor did fix the P0446 code, and the check engine light never came back. I made sure my fuel level in the gas tank never dropped below 1/4 of a tank level during this 4 day drive cycle. After this drive cycle, the truck turned off the check engine light. Make sure to clean off the top of the fuel tank area thoroughly, by brushing it with a medium bristle scrub brush, then use your flexible vacuum hose to get into the area, and vacuum out the road rocks, and sand, and rust, and debris, sitting on top of the fuel tank. Then afterwards, you can start to undo the electrical connection to the fuel pressure sensor, and pull out the sensor. There might be so much sand and dirt sitting above the fuel pressure sensor and the electrical connection, that you may not even be able to see it, initially. Be careful not to push and scrape too hard while cleaning off the debris. The 3 causes of a P0446 code, are: - (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement. - (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister. - (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced. For me personally, I actually had 2 problems at the same time! I had just purchased the truck from the previous owner for a cheap price. Initially, the truck would not allow me to put gasoline into the fuel neck, at the gas station, without the gasoline backing up the fuel neck until it spilled out of the truck, and onto the ground. A faulty fuel pressure sensor would never cause this to happen. What caused this to happen was that the charcoal canister was plugged up with too much dust, from driving off-road in dusty conditions. Because the canister was not allowing enough airflow to pass through the canister, it would not allow the air to exit quickly enough from the canister and through the vent valve, to the outside of the truck, in order to allow the gasoline coming into the gas tank, to push the air inside of the gas tank, out of the gas tank, at the same rate of speed at which the gasoline was coming into the fuel neck. If the gasoline is put into the fuel neck when you are filling up, and you have to put in a small amount of gas at a time, then wait, wait for it to drain slowly down the fuel filler neck and into the gas tank, then you can put in another small amount of gas into the fuel neck, and wait again for it to drain down into the gas tank, then you will know that the fuel system has a flow restriction (clog). The clog is usually not on the line between the fuel filler neck and the gas tank, it is usually on the line that is between the gas tank and the gasoline vapor cleaning tool (charcoal canister). The air that is displaced out of the gas tank, by the entry of the new fuel into the tank, is pushed along the line out of the tank to where it enters into the charcoal canister, where most of the gas vapors are filtered out of the air, before it exits the vehicle through the vent valve, and to the environment. For me, my vent valve solenoid was functioning correctly, but my charcoal canister had an air movement restriction, due to too much dust, and it was causing the gasoline I was trying to fill at the gas station, to spill down the side of my truck and onto the ground. Luckily I was able to remove the canister and spray it out, and re-install it, and successfully fill fuel up at the gas station. However, my P0446 code did not go away. I had another problem, apparently. I replaced my fuel pressure sensor, on top of the gas tank, and after driving 4 days with not allowing the fuel level in the gas tank to drop below 1/4 tank during these 4 days, the truck computer removed the P0446 code, and so the check engine light was removed from the dash board! Halelujah. I would also recommend watching the other videos on my channel showing the vent valve solenoid on a charcoal canister, for the Evaporative emissions system on GMC Canyon. Subscribing would be the easiest way to see all the videos, if you want.
Thanks for the video. I have a 2007 Sub with only 74 miles. Check engine light turned on with OBD code P0446 (Evaporative Emission System Vent Control Circuit 1/1. I've replaced the gas cap, vapor vent canister valve, vapor jumper wire and the Emissions Vapor Canister Purge Valve Solenoid EVAP Vent ( I don't think it's necessary but I did it anyway). Cleared it and the check engine light is gone but after driving 93 miles, the I/M is still not ready with a combo drive of city and fwy. Drove it for another mile and after 6 cycles, when I ran the OBD at 94 miles to see if it's I/M ready, unfortunately I see the same "pending" P0446 code despite driving it up to 110 miles hoping it will clear on it's own. So I decided to erase the pending code/OBD and did the same thing again. Drove it up to 92 miles without check engine, still not I/M ready and at 94 miles later it's still not ready and the "pending" p0446 code is back. Should I continue driving it in hope that it will go away since it's not giving me a permanent OBD code? I'd appreciate any suggestions on what to do so I can get this smog. Btw, I/M reads as: PdDTC (1), Evap (X), Cat (X) and the rest has a check mark/ready.
Hey, you’re welcome for the video. A common cause of P0446 code is potentially a faulty fuel pressure sensor that needs to be replaced. For your situation, keep driving until it throws a permanent code. From what you said you have already replaced as far as the parts are concerned, it sounds like you’ve replaced all the other potential problems related to a P0446 code. It sounds very likely that the only last potential item that would throw the code would be the fuel pressure sensor? The 3 causes of a PO446 code, are: - (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement. - (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister. - (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced. For me personally, I actually had 2 problems at the same time! I had just purchased the truck from the previous owner for a cheap price. Initially, the truck would not allow me to put gasoline into the fuel neck, at the gas station, without the gasoline backing up the fuel neck until it spilled out of the truck, and onto the ground. A faulty fuel pressure sensor would never cause this to happen. What caused this to happen was that the charcoal canister was plugged up with too much dust, from driving off-road in dusty conditions. Because the canister was not allowing enough airflow to pass through the canister, it would not allow the air to exit quickly enough from the canister and through the vent valve, to the outside of the truck, in order to allow the gasoline coming into the gas tank, to push the air inside of the gas tank, out of the gas tank, at the same rate of speed at which the gasoline was coming into the fuel neck. If the gasoline is put into the fuel neck when you are filling up, and you have to put in a small amount of gas at a time, then wait, wait for it to drain slowly down the fuel filler neck and into the gas tank, then you can put in another small amount of gas into the fuel neck, and wait again for it to drain down into the gas tank, then you will know that the fuel system has a flow restriction (clog). The clog is usually not on the line between the fuel filler neck and the gas tank, it is usually on the line that is between the gas tank and the gasoline vapor cleaning tool (charcoal canister). The air that is displaced out of the gas tank, by the entry of the new fuel into the tank, is pushed along the line out of the tank to where it enters into the charcoal canister, where most of the gas vapors are filtered out of the air, before it exits the vehicle through the vent valve, and to the environment. For me, my vent valve solenoid was functioning correctly, but my charcoal canister had an air movement restriction, due to too much dust, and it was causing the gasoline I was trying to fill at the gas station, to spill down the side of my truck and onto the ground. Luckily I was able to remove the canister and spray it out, and re-install it, and successfully fill fuel up at the gas station. However, my PO446 code did not go away. I had another problem, apparently. I replaced my fuel pressure sensor, on top of the gas tank, and after driving 4 days with not allowing the fuel level in the gas tank to drop below 1/4 tank during these 4 days, the truck computer removed the PO446 code, and so the check engine light was removed from the dash board! Halelujah.
Replacing the fuel pressure sensor did fix the P0446 code. You were asking about a truck that is having problems starting, and this would not be caused by A faulty fuel pressure sensor, as far as I know. We were talking about the fuel pressure sensor, not the fuel pump. Sometimes when the fuel pump is starting to go bad, it would cause weak fuel pressure and difficulty starting. A weak fuel pump will often show you problems if you are asking for lots of fuel to be delivered to the engine, like when you are driving it pedal to the metal going uphill, when it requires lots of fuel and fuel pressure.
When you had this problem how was your truck acting? I’m having issues when it first starts that is it. Figured it was fuel related somehow and stumbled upon this video. When I first start it and let it idle it wants to quit. If I drive it when I first start it and I am going up a hill or the truck has any kind of load on it, it will stall then I let off gas and it is fine only does it when I first start it.
Hi, I’m not sure what is causing your problem as I am not a mechanic, but a few things that are going to do to keep your GMC Canyon in good working condition, is to: 1)Replace your air filter so that air is not being choked to the engine. 2) learn how to clean the MAF sensor (mass airflow sensor) with cleaning spray and make sure not to make direct contact physically with any parts or you will damage it. 3) perhaps remove and replace the gasoline filter under the vehicle. 4)Make sure your spark plugs are not overdue for replacement. 5)If you have an automatic transmission, the best advice is to make sure you do regular transmission oil changes or your transmission will not last. 6) use fully synthetic motor oil. 7) Prevent your motor from overheating Buy making sure your radiator fluid is in good condition and replaced within the kilometres suggested. For you, is there any codes that come up on your check engine? Maybe you could learn how to check your fuel pressure using a fuel pressure gauge? There is some thing also called a fuel pressure regulator, that sometimes it goes bad. Sometimes the purge valve solenoid dies in the open position, and this would always allow extra gasoline into the combustion process... maybe that would cause it to stall? I am not sure. When the engine is cold the brains of the truck give the engine more gas to allow it to run smoothly. Perhaps it is getting too much gas when it’s cold? Or perhaps your fuel pump is not pumping strongly enough to give it enough gas when it needs more gas when it’s cold? Just a guess as I say as I am not a mechanic. When your engine becomes fully warmed up, the brains give the engine less gas because it needs less to operate smoothly. Usually when a fuel pump is getting weak you can see it when you are driving uphill demanding more power out of the engine and therefore demanding more fuel to reach the engine, at a faster rate.
Actually, for my truck, when I had the P0466 code, there were no adverse symptoms related to driving. I just kept getting the check engine light on the dashboard. Then when I plugged in my scanner the scanner showed the P0466 code not going away. When I replaced the fuel tank pressure Sensor, and I allowed it to drive through a full drive cycle and did not allow the gasoline level to drop Below 1/4 tank during the full drive cycle, The P0466 code eventually cleared itself and went away. It took about four days of driving in multiple conditions.
I replaced my fuel pump now I'm getting p0446 it came with a new ftps but it wasn't oem is this the reasoning for the code ? I was getting a p0440 prior but not p0446 changed the purge valve and the vent valve with no luck.
It sounds very likely that your fuel tank pressure sensor (ftps) is causing the P0466 check engine code, seeing as how you have already replaced the vent valve solenoid. Those are the 2 most common fixes for a P0446 code, on a 2004 to 2012 Canyon or Colorado. Make sure that the ftps is in fact pressed down and fully seated in the hole it sits in.
My gas tank pressure sensor came out easily after I grabbed it with pliers properly. I pulled it straight up. It did not break. Make sure to clean off the top of the fuel tank area thoroughly, by brushing it with a medium bristle scrub brush, then use your flexible vacuum hose to get into the area, and vacuum out the road rocks, and sand, and rust, and debris. Then you can start to undo the electrical connection, and pull out the sensor.
The 3 causes of a P0446 code, are:
- (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement.
- (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister.
- (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced.
Thanks buddy. That sure is easier than dropping tank or lifting bed.
Glad I could help out with the video. This job is not too technical, but it would be a good repair experience if people just allow more time in their day to do this, so that they can understand that things always take longer than what they think, to do all the repair work, and all the clean up, and all the finding of their tools, and vacuums, and extension cords, and changing clothes, and washing up, and a snack, and Spotify music on the remote speakers or smart phone :) or what ever you like to do to enjoy this mechanical work on your truck. Patience is the best tool, to complete it correctly, without any doubt.
All of this is to remember how nice it is to drive the truck with no check engine light illuminating :)
2016 Crew cab .... jack up truck, put on jack stands ....you need to lower gas tank about 2 inches. Reach over driver side frame rail and work blindly (sense of feel only) to unplug and remove sensor.....rear tire does not need to be removed....i used a pick to unplug and remove at the same time, the sensor is friction fit, no screws or bolts.....real pain in the ass.....but it worked...
Installing this new fuel tank pressure sensor did fix the P0446 code, and the check engine light never came back. I made sure my fuel level in the gas tank never dropped below 1/4 of a tank level during this 4 day drive cycle. After this drive cycle, the truck turned off the check engine light.
Make sure to clean off the top of the fuel tank area thoroughly, by brushing it with a medium bristle scrub brush, then use your flexible vacuum hose to get into the area, and vacuum out the road rocks, and sand, and rust, and debris, sitting on top of the fuel tank. Then afterwards, you can start to undo the electrical connection to the fuel pressure sensor, and pull out the sensor. There might be so much sand and dirt sitting above the fuel pressure sensor and the electrical connection, that you may not even be able to see it, initially. Be careful not to push and scrape too hard while cleaning off the debris.
The 3 causes of a P0446 code, are:
- (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement.
- (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister.
- (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced.
For me personally, I actually had 2 problems at the same time! I had just purchased the truck from the previous owner for a cheap price. Initially, the truck would not allow me to put gasoline into the fuel neck, at the gas station, without the gasoline backing up the fuel neck until it spilled out of the truck, and onto the ground. A faulty fuel pressure sensor would never cause this to happen. What caused this to happen was that the charcoal canister was plugged up with too much dust, from driving off-road in dusty conditions. Because the canister was not allowing enough airflow to pass through the canister, it would not allow the air to exit quickly enough from the canister and through the vent valve, to the outside of the truck, in order to allow the gasoline coming into the gas tank, to push the air inside of the gas tank, out of the gas tank, at the same rate of speed at which the gasoline was coming into the fuel neck.
If the gasoline is put into the fuel neck when you are filling up, and you have to put in a small amount of gas at a time, then wait, wait for it to drain slowly down the fuel filler neck and into the gas tank, then you can put in another small amount of gas into the fuel neck, and wait again for it to drain down into the gas tank, then you will know that the fuel system has a flow restriction (clog). The clog is usually not on the line between the fuel filler neck and the gas tank, it is usually on the line that is between the gas tank and the gasoline vapor cleaning tool (charcoal canister). The air that is displaced out of the gas tank, by the entry of the new fuel into the tank, is pushed along the line out of the tank to where it enters into the charcoal canister, where most of the gas vapors are filtered out of the air, before it exits the vehicle through the vent valve, and to the environment.
For me, my vent valve solenoid was functioning correctly, but my charcoal canister had an air movement restriction, due to too much dust, and it was causing the gasoline I was trying to fill at the gas station, to spill down the side of my truck and onto the ground. Luckily I was able to remove the canister and spray it out, and re-install it, and successfully fill fuel up at the gas station.
However, my P0446 code did not go away. I had another problem, apparently.
I replaced my fuel pressure sensor, on top of the gas tank, and after driving 4 days with not allowing the fuel level in the gas tank to drop below 1/4 tank during these 4 days, the truck computer removed the P0446 code, and so the check engine light was removed from the dash board! Halelujah.
I would also recommend watching the other videos on my channel showing the vent valve solenoid on a charcoal canister, for the Evaporative emissions system on GMC Canyon.
Subscribing would be the easiest way to see all the videos, if you want.
Good video but one never get to see the job done. You explain but never get to do the job.
Thanks for the video. I have a 2007 Sub with only 74 miles. Check engine light turned on with OBD code P0446 (Evaporative Emission System Vent Control Circuit 1/1. I've replaced the gas cap, vapor vent canister valve, vapor jumper wire and the Emissions Vapor Canister Purge Valve Solenoid EVAP Vent ( I don't think it's necessary but I did it anyway). Cleared it and the check engine light is gone but after driving 93 miles, the I/M is still not ready with a combo drive of city and fwy. Drove it for another mile and after 6 cycles, when I ran the OBD at 94 miles to see if it's I/M ready, unfortunately I see the same "pending" P0446 code despite driving it up to 110 miles hoping it will clear on it's own. So I decided to erase the pending code/OBD and did the same thing again. Drove it up to 92 miles without check engine, still not I/M ready and at 94 miles later it's still not ready and the "pending" p0446 code is back. Should I continue driving it in hope that it will go away since it's not giving me a permanent OBD code? I'd appreciate any suggestions on what to do so I can get this smog. Btw, I/M reads as: PdDTC (1), Evap (X), Cat (X) and the rest has a check mark/ready.
Hey, you’re welcome for the video. A common cause of P0446 code is potentially a faulty fuel pressure sensor that needs to be replaced. For your situation, keep driving until it throws a permanent code.
From what you said you have already replaced as far as the parts are concerned, it sounds like you’ve replaced all the other potential problems related to a P0446 code. It sounds very likely that the only last potential item that would throw the code would be the fuel pressure sensor?
The 3 causes of a PO446 code, are:
- (1)the vent valve of the canister(not the purge valve) is malfunctioning, and needs replacement.
- (2)the charcoal canister has way too much dust inside of it, thereby clogging off the flow of air, so the gas tank is not able to breathe properly. Either buy a brand new charcoal canister(expensive), or remove the old canister from the truck, and use compressed air line and spray nozzle from a compressor, to spray out the dust and remove it from the canister.
- (3)the fuel pressure sensor, on top of the gas tank, is faulty, and needs to be replaced.
For me personally, I actually had 2 problems at the same time! I had just purchased the truck from the previous owner for a cheap price. Initially, the truck would not allow me to put gasoline into the fuel neck, at the gas station, without the gasoline backing up the fuel neck until it spilled out of the truck, and onto the ground. A faulty fuel pressure sensor would never cause this to happen. What caused this to happen was that the charcoal canister was plugged up with too much dust, from driving off-road in dusty conditions. Because the canister was not allowing enough airflow to pass through the canister, it would not allow the air to exit quickly enough from the canister and through the vent valve, to the outside of the truck, in order to allow the gasoline coming into the gas tank, to push the air inside of the gas tank, out of the gas tank, at the same rate of speed at which the gasoline was coming into the fuel neck.
If the gasoline is put into the fuel neck when you are filling up, and you have to put in a small amount of gas at a time, then wait, wait for it to drain slowly down the fuel filler neck and into the gas tank, then you can put in another small amount of gas into the fuel neck, and wait again for it to drain down into the gas tank, then you will know that the fuel system has a flow restriction (clog). The clog is usually not on the line between the fuel filler neck and the gas tank, it is usually on the line that is between the gas tank and the gasoline vapor cleaning tool (charcoal canister). The air that is displaced out of the gas tank, by the entry of the new fuel into the tank, is pushed along the line out of the tank to where it enters into the charcoal canister, where most of the gas vapors are filtered out of the air, before it exits the vehicle through the vent valve, and to the environment.
For me, my vent valve solenoid was functioning correctly, but my charcoal canister had an air movement restriction, due to too much dust, and it was causing the gasoline I was trying to fill at the gas station, to spill down the side of my truck and onto the ground. Luckily I was able to remove the canister and spray it out, and re-install it, and successfully fill fuel up at the gas station.
However, my PO446 code did not go away. I had another problem, apparently.
I replaced my fuel pressure sensor, on top of the gas tank, and after driving 4 days with not allowing the fuel level in the gas tank to drop below 1/4 tank during these 4 days, the truck computer removed the PO446 code, and so the check engine light was removed from the dash board! Halelujah.
@@blairj1409 I'll do that next and keep you posted. Thanks again!
That would be great if you can keep us posted about the results of the repair! Thanks. Good luck with it.
@@blairj1409 👌
@@iceman9956so any news?
Did this remove the code? Also, was your truck having issues on really hot days starting? Like it would start but stall out right away.
Replacing the fuel pressure sensor did fix the P0446 code. You were asking about a truck that is having problems starting, and this would not be caused by A faulty fuel pressure sensor, as far as I know. We were talking about the fuel pressure sensor, not the fuel pump.
Sometimes when the fuel pump is starting to go bad, it would cause weak fuel pressure and difficulty starting. A weak fuel pump will often show you problems if you are asking for lots of fuel to be delivered to the engine, like when you are driving it pedal to the metal going uphill, when it requires lots of fuel and fuel pressure.
When you had this problem how was your truck acting? I’m having issues when it first starts that is it. Figured it was fuel related somehow and stumbled upon this video. When I first start it and let it idle it wants to quit. If I drive it when I first start it and I am going up a hill or the truck has any kind of load on it, it will stall then I let off gas and it is fine only does it when I first start it.
Hi, I’m not sure what is causing your problem as I am not a mechanic, but a few things that are going to do to keep your GMC Canyon in good working condition, is to:
1)Replace your air filter so that air is not being choked to the engine.
2) learn how to clean the MAF sensor (mass airflow sensor) with cleaning spray and make sure not to make direct contact physically with any parts or you will damage it.
3) perhaps remove and replace the gasoline filter under the vehicle.
4)Make sure your spark plugs are not overdue for replacement.
5)If you have an automatic transmission, the best advice is to make sure you do regular transmission oil changes or your transmission will not last.
6) use fully synthetic motor oil.
7) Prevent your motor from overheating Buy making sure your radiator fluid is in good condition and replaced within the kilometres suggested.
For you, is there any codes that come up on your check engine?
Maybe you could learn how to check your fuel pressure using a fuel pressure gauge?
There is some thing also called a fuel pressure regulator, that sometimes it goes bad.
Sometimes the purge valve solenoid dies in the open position, and this would always allow extra gasoline into the combustion process... maybe that would cause it to stall? I am not sure.
When the engine is cold the brains of the truck give the engine more gas to allow it to run smoothly. Perhaps it is getting too much gas when it’s cold?
Or perhaps your fuel pump is not pumping strongly enough to give it enough gas when it needs more gas when it’s cold? Just a guess as I say as I am not a mechanic.
When your engine becomes fully warmed up, the brains give the engine less gas because it needs less to operate smoothly.
Usually when a fuel pump is getting weak you can see it when you are driving uphill demanding more power out of the engine and therefore demanding more fuel to reach the engine, at a faster rate.
Actually, for my truck, when I had the P0466 code, there were no adverse symptoms related to driving. I just kept getting the check engine light on the dashboard. Then when I plugged in my scanner the scanner showed the P0466 code not going away.
When I replaced the fuel tank pressure Sensor, and I allowed it to drive through a full drive cycle and did not allow the gasoline level to drop Below 1/4 tank during the full drive cycle, The P0466 code eventually cleared itself and went away. It took about four days of driving in multiple conditions.
I replaced my fuel pump now I'm getting p0446 it came with a new ftps but it wasn't oem is this the reasoning for the code ? I was getting a p0440 prior but not p0446 changed the purge valve and the vent valve with no luck.
It sounds very likely that your fuel tank pressure sensor (ftps) is causing the P0466 check engine code, seeing as how you have already replaced the vent valve solenoid. Those are the 2 most common fixes for a P0446 code, on a 2004 to 2012 Canyon or Colorado.
Make sure that the ftps is in fact pressed down and fully seated in the hole it sits in.
U never showed how did it come out was it easy did it come out in one peice or did it snap off and u had to use a screw or push it down in the tank?
My gas tank pressure sensor came out easily after I grabbed it with pliers properly. I pulled it straight up. It did not break. Make sure to clean off the top of the fuel tank area thoroughly, by brushing it with a medium bristle scrub brush, then use your flexible vacuum hose to get into the area, and vacuum out the road rocks, and sand, and rust, and debris. Then you can start to undo the electrical connection, and pull out the sensor.
What year is this Canyon?
The truck is a 2005 GMC Canyon, extended cab, 2 Wheel Rear drive.