Really good video and especially the tip on how to remove the connector clips from the coils as I broke one today doing exactly what you said not to do. LOL
I own a 2006 Scion xB bought it new. Great car, but it started the miss. Watched your video and now know that I can do the job. Priced the coils at the local parts store, and they wanted $275 for 4 of them. Went to ebay and found four OEM coils for $75. Got the OEM spark plugs while I was there.
@@saabtech3510 Once again, thanks for the video. I have installed the new plugs, and coils. xB runs like new, smooth and more power. Only question, is there a way to reset the check eng. , VSP, and Traction control warning lights? Can your scanner be able to do that?
@@bobdavis3062 In some cases if you disconnect the battery for a few minutes, it will reset. And sometimes the lights will reset on their own after it self tests the systems over the course of a few days. If not, a scan tool will be needed to clear the codes, also in case something else has triggered a code you can find that out. Not uncommon to have a few things go wrong close together and not always related problems.
Thank you for your time and effort for helping and educating us. I have an 05 Psion TC. I’m getting a random misfire in all four cylinders. Do you know what may cause this? I assume the timing is off, with that be correct?
One thing to check is the spark plugs. Use only OE. (Original equipment) Timing should not be off. It is computer controlled. Also make sure no vacuum hoses are leaking.
No link, but I now recommend only OE parts from a reliable source, like the Toyota Dealer. The internet is now majority counterfeit parts that lead to nothing but problems. Bite the bullet, put in 4 new OE coils, and 4 new OE plugs. In the long run you will be rewarded.
My mom has one same year. Hers has 348,xxx and counting. Replaced all spark plugs and coils and it will intermittently run bad. But I got a catalytic code so we’re gonna try running some 93 octane and drive it like she stole it. Hopefully that’ll help.
I've seen many videos on how to correct a misfire code by replacing the coil or coil pack and plugs as well. What I would like to know is what caused the misfire in the first place? Ignition Timing, oxygen sensor(s) or fuel pump or something else? Any direction would help. I'm working on a 2008 Scion xD 1.8L
@@saabtech3510 that makes sense, but in my case it's repetitive... I've replaced the plugs every 6mos, and I'm on my 3rd set of coils just since 2022... Which leads me to believe there's something causing the misfire. I'm currently checking on TDC alignment and cylinder compression. Not sure how to check the fuel pump other than just replacing it. Lastly I'll see about the injectors. Engine has 193K miles (2ZR-FE)
@@el.handyman It's not likely any of those things. Most likely it is cheap and/or counterfeit parts. The parts are so bad now, that they don't last. I think you will be chasing your tail. My advice is to go to the dealer itself, and purchase the OE parts. (bite the bullet) The OE parts on ebay etc. are almost always counterfeit now. Even the spark plugs. I only buy my parts now directly from the dealer for my Toyota and my Lexus. (Fuel pump, timing, etc. will NOT cause the coils to fail.) Getting the OE parts from the dealer, while expensive, should last you as long as the factory ones did. In the end, it is cheaper and saves all the time and aggravation. See: ruclips.net/video/FVA4RYql9KU/видео.html
@@saabtech3510 Thank you! I think that's the best advice I've received from anyone! I've replacing them with AutoZone's Duralast brand... I guess it's time for the Toyota brand... 😩. Thanks again!
Was carefull with the clips but they still broke, very brittle. Easy to replace the connectors though. Thanks for the great video. Now have a bouncing idle in neutral. Air intake gasket leak? Appreciate any ideas.
My 05 Scion tc had a blinking engine light and hesitated on acceleration, but had a steady idle. I changed the plugs and coils with good ones and then it would just die when idling?
Carefully check your work, and for anything loose or detached under the hood. Also, try disconnecting the battery for 10 minutes. Sometimes the computer has to "relearn" the proper idle.
Just ran the scanner on my moms 06. Says misfire in cylinder 3/coil. Checked the plugs and might as well replace them as well. As for the coils does it matter which one goes where when I order the new ones?
Trying to diagnose my 2011 Scion coils, my local shop is struggling and I’m looking into it myself now. They replaced all 4 about two years ago, and one has failed about every 6 months…any ideas? Could this be a control unit problem? Bad connections at the coils?
The aftermarket coils are very prone to failure. In my opinion only OE Denso coils should be used. Also, be sure the clips on the connectors are not broken. Very brittle. Secure with a small wire tie if needed.
I may just go get those and fix myself before it happens again. Usually notice a rough idle when in park or at a stop light, gets worse over time and then a failure occurs…it’s happened 3 times now! Thank you for the quick reply and advice!!
my 2001 toyota echo had a bad upstream o2 sensor. it made my car misfire like crazy. i was able to isolate the misfiring problem to that o2 sensor by unplugging the wire harness to the o2 sensor. when unplugged, it drove perfect-- no misfiring. i didn't know a bad o2 sensor could make a car run so terrible! i will leave it unplugged until the new one i ordered arrives (permanently leaving it unplugged would permanently affect my MPG...) hope this helps someone else!
Hey hru. O5 xb change dam near everything. Took to shop. Said 810 just to take it apart. 🤯🤯 Said low combustion cy 1 . Ice tried everything but 02 I was going there next but tired of guessing very long expensive irritating adventure. Could o2 make cy 1 not work? Mine actually runs ok but start up us not good. And only code pops up is cy 1 mis fire. Has low power in my opinion. Please help I posted some shorts on my channel even sent a vid request mention to Scott a few weeks ago🤷
Question, I have an '07 Scion TC, it has a hesitation upon acceleration from a stopped position or coasting, I've had it to 4 different garages, even a dealer, not one can figure out what the problem is, any ideas? It has 135k on it?
You need to change the coil after diagnosis and lookout for breaking Electricial lines to the coil also. Remove and service the injectors.. you are good to go!!!!!!
my 2001 toyota echo had a bad upstream o2 sensor. it made my car misfire like crazy. i was able to isolate the misfiring problem to that o2 sensor by unplugging the wire harness to the o2 sensor. when unplugged, it drove perfect-- no misfiring. i didn't know a bad o2 sensor could make a car run so terrible! i will leave it unplugged until the new one i ordered arrives (permanently leaving it unplugged would permanently affect my MPG...) if you havent sorted your car out yet, unplug the upstream o2 sensor, then take the car for a quick drive. if it runs perfect-- its the o2 sensor. if it doesnt change how it runs, try unplugging the downstream o2 sensor and see if that changes its performance.
@@saabtech3510 coil connectors secure, plugs look good, little brown on outside white part. Use Toyota spark plugs 6 months ago. Idle is strong, take off give it gas starts to sputter; Fuel injectors ? Thank you.
Thank you for your help, great appreciated. 6 months ago changed all 4 with Denso spark plugs. Never in my life changing plugs have had a fouled plug, especially this brand in a short amount of time. With 4 new coils, plug, she is running great.
@@bluefootbooby1 Sometimes, with the bad coil, it fouls the plug to where it just won't fire like it used to. Seems to be one of those things. With the Saabs when we changed the coil pack, no matter how good the plugs looked, we always replaced them with new OE plugs. Package deal....they work together.
My cylinders were leaking oil so my coiI packs were full of oil I replaced the valve cover gasket cleaned off the coils and stuck them back in then changed out my spark plugs, still running a little rough so I changed the crank shaft sensor and it’s still idling/misfiring. I’m hoping the coil packs themselves are the problem I’m tired of wasting money on things I don’t need
Try swapping 2 of the new coils and see if the misfire moves. Maybe a defective part. Check the plug too. Also check the connection to the coil. If all that fails, might need to check cylinder compression.
Let’s say you get a cylinder 1 misfire code and you want to drive it home can you disconnect the fuel injector for cylinder 1 and drive it to avoid unburned fuel in the exhaust?
You should replace the spark plugs too. If it still misfires, might need to do a compression test. (Also, if you did not use the Denso OE coils, the cheap ones often don't work well.)
I had to search around on ebay for about 30 minutes before I found this best price for 4 OE Denso coils. Sometimes you have to search a bit for car parts on ebay, also being careful you are getting the genuine parts.
Here is where I got my four coils for $68 www.ebay.com/itm/4PCS-Genuine-OEM-Ignition-Coil-90919-02240-For-Toyota-Yaris-Prius-A-B-Echo-1-5L/273350222148?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Very clear and helpful. And folks, he is NOT kidding about those brittle clips. Be easy on them and use his method.
Thanks for the reminder, I'm about to try this right now. Changed the plugs(they needed it anyway) and am going to give this a whirl! 🤞
It's been a minute since this video was made... Those coils are about $84ea now. Good video
shit i got the 4 pack for 188.. .the plugs 9 somthing each spent 221 out the door
Really good video and especially the tip on how to remove the connector clips from the coils as I broke one today doing exactly what you said not to do. LOL
I own a 2006 Scion xB bought it new. Great car, but it started the miss. Watched your video and now know that I can do the job. Priced the coils at the local parts store, and they wanted $275 for 4 of them. Went to ebay and found four OEM coils for $75. Got the OEM spark plugs while I was there.
Great! Glad to know my video was of help. Great little car for sure.
@@saabtech3510 Once again, thanks for the video. I have installed the new plugs, and coils. xB runs like new, smooth and more power. Only question, is there a way to reset the check eng. , VSP, and Traction control warning lights? Can your scanner be able to do that?
@@bobdavis3062 In some cases if you disconnect the battery for a few minutes, it will reset. And sometimes the lights will reset on their own after it self tests the systems over the course of a few days. If not, a scan tool will be needed to clear the codes, also in case something else has triggered a code you can find that out. Not uncommon to have a few things go wrong close together and not always related problems.
@@saabtech3510 Thanks for the quick reply. will try the battery disconect.
I changed the coils and it still misfires any suggestions
Thank you for helping educate us on this subject. Very good video.
I just called the local Toyota dealer and they quoted me $205 for one coil for a 2004 Scion XA. I didn't know they were made of solid gold.
Go mine on rock auto. 20 bucks each. Ordered one. Ordered it on a Wednesday, paid for that day and it came in 2 days instead for no extra cost
Excellent, thanks, subscribed.
Thank you for your time and effort for helping and educating us.
I have an 05 Psion TC. I’m getting a random misfire in all four cylinders. Do you know what may cause this? I assume the timing is off, with that be correct?
One thing to check is the spark plugs. Use only OE. (Original equipment) Timing should not be off. It is computer controlled. Also make sure no vacuum hoses are leaking.
Thank you very much.
I just find it odd that all four would fail at the same time.
If you happen to have a link to the parts that would be great. Old video but would be helpful to me as I’m replacing mine soon. Thanks
No link, but I now recommend only OE parts from a reliable source, like the Toyota Dealer. The internet is now majority counterfeit parts that lead to nothing but problems. Bite the bullet, put in 4 new OE coils, and 4 new OE plugs. In the long run you will be rewarded.
My mom has one same year. Hers has 348,xxx and counting. Replaced all spark plugs and coils and it will intermittently run bad. But I got a catalytic code so we’re gonna try running some 93 octane and drive it like she stole it. Hopefully that’ll help.
I got the catalytic code too and then it started feeling sluggish any advice?
@@danielvazquez392 I wound up replacing the fuel injector in cylinder #2 and that solved my problem
We’re those coils new for $70? I’ve found some used/cleaned ones for $50. Would trying used ones be an option?
Yes, they were new. I had to search for a while. Used ones that are original equipment would be better than new cheap aftermarket ones.
What do you do if swapping coils doesn't solve the issue?
I've seen many videos on how to correct a misfire code by replacing the coil or coil pack and plugs as well. What I would like to know is what caused the misfire in the first place? Ignition Timing, oxygen sensor(s) or fuel pump or something else? Any direction would help. I'm working on a 2008 Scion xD 1.8L
Parts simply get old and worn and fail. Also, if the plug gaps are allowed to get too large over time, it stresses the coils.
@@saabtech3510 that makes sense, but in my case it's repetitive... I've replaced the plugs every 6mos, and I'm on my 3rd set of coils just since 2022... Which leads me to believe there's something causing the misfire. I'm currently checking on TDC alignment and cylinder compression. Not sure how to check the fuel pump other than just replacing it. Lastly I'll see about the injectors. Engine has 193K miles (2ZR-FE)
@@el.handyman It's not likely any of those things. Most likely it is cheap and/or counterfeit parts. The parts are so bad now, that they don't last. I think you will be chasing your tail. My advice is to go to the dealer itself, and purchase the OE parts. (bite the bullet) The OE parts on ebay etc. are almost always counterfeit now. Even the spark plugs. I only buy my parts now directly from the dealer for my Toyota and my Lexus. (Fuel pump, timing, etc. will NOT cause the coils to fail.) Getting the OE parts from the dealer, while expensive, should last you as long as the factory ones did. In the end, it is cheaper and saves all the time and aggravation. See: ruclips.net/video/FVA4RYql9KU/видео.html
@@saabtech3510 Thank you! I think that's the best advice I've received from anyone! I've replacing them with AutoZone's Duralast brand... I guess it's time for the Toyota brand... 😩. Thanks again!
Was carefull with the clips but they still broke, very brittle. Easy to replace the connectors though.
Thanks for the great video.
Now have a bouncing idle in neutral. Air intake gasket leak? Appreciate any ideas.
I have the same issue, replaced all 4 coils now my car sputters
where do you buy the connectors ? what is the connectors called?
180000 and first coil I change
Does a misfire always set off the check engine light? My exhaust goes putt putt putt but I don’t have have warning lights illuminated
A mild misfire may not trigger the check engine light.
My 05 Scion tc had a blinking engine light and hesitated on acceleration, but had a steady idle. I changed the plugs and coils with good ones and then it would just die when idling?
Carefully check your work, and for anything loose or detached under the hood. Also, try disconnecting the battery for 10 minutes. Sometimes the computer has to "relearn" the proper idle.
Can you clear the code unplugging the battery? I dont have the code reader.
is the order 1342 or 1234 for the ignition coil ?
Right around :38 is he talking sleep? Lol
Just ran the scanner on my moms 06. Says misfire in cylinder 3/coil. Checked the plugs and might as well replace them as well. As for the coils does it matter which one goes where when I order the new ones?
All 4 coils are the same.....just need to be attached to the correct wires for each cylinder.
Do you have to disconnect your battery to do this?
No.
Just don’t leave the engine on and always work on it when it’s cold, don’t want to burn yourself, it’s really nasty
Trying to diagnose my 2011 Scion coils, my local shop is struggling and I’m looking into it myself now. They replaced all 4 about two years ago, and one has failed about every 6 months…any ideas? Could this be a control unit problem? Bad connections at the coils?
The aftermarket coils are very prone to failure. In my opinion only OE Denso coils should be used. Also, be sure the clips on the connectors are not broken. Very brittle. Secure with a small wire tie if needed.
Also, sadly, there are also counterfeit OE coils out there.
I may just go get those and fix myself before it happens again. Usually notice a rough idle when in park or at a stop light, gets worse over time and then a failure occurs…it’s happened 3 times now! Thank you for the quick reply and advice!!
@@SpaceDad57 important to use OE spark plugs as well. 🙂
when people recommend pulling coil they are only disconnecting the electrical connection they are not pulling coil out!
it is only 12 volts
i have a 06 xa and the accy belt broke and it overheated now it will not turn over . help!
my 2001 toyota echo had a bad upstream o2 sensor. it made my car misfire like crazy. i was able to isolate the misfiring problem to that o2 sensor by unplugging the wire harness to the o2 sensor. when unplugged, it drove perfect-- no misfiring. i didn't know a bad o2 sensor could make a car run so terrible! i will leave it unplugged until the new one i ordered arrives (permanently leaving it unplugged would permanently affect my MPG...) hope this helps someone else!
Ive tried everything except this on my 05 XB, thanks man it's worth a shot. I'm having a cyl 1 misfire on mine
@@mylittlescienceproject what happened?
Hey hru. O5 xb change dam near everything. Took to shop. Said 810 just to take it apart. 🤯🤯 Said low combustion cy 1 . Ice tried everything but 02 I was going there next but tired of guessing very long expensive irritating adventure. Could o2 make cy 1 not work? Mine actually runs ok but start up us not good. And only code pops up is cy 1 mis fire. Has low power in my opinion. Please help I posted some shorts on my channel even sent a vid request mention to Scott a few weeks ago🤷
@@mylittlescienceproject nah man I did that . Shop said low combustion. Poss vale or piston. Paid fucking 95 for that useless info ty tho
@williambrucesanders6878 did you figure it out?
Does anyone know which one is considered p0 302?
It means a misfire is detected in cylinder #2.
@@saabtech3510 yes I know that but heard that number 2 is based off the firing pattern not necessarily the second one in the order we see.
Question, I have an '07 Scion TC, it has a hesitation upon acceleration from a stopped position or coasting, I've had it to 4 different garages, even a dealer, not one can figure out what the problem is, any ideas? It has 135k on it?
Maybe a bad sparkplug or coil? Hard to say. Even a cracked sparkplug can misfire under load.
You need to change the coil after diagnosis and lookout for breaking Electricial lines to the coil also. Remove and service the injectors.. you are good to go!!!!!!
my 2001 toyota echo had a bad upstream o2 sensor. it made my car misfire like crazy. i was able to isolate the misfiring problem to that o2 sensor by unplugging the wire harness to the o2 sensor. when unplugged, it drove perfect-- no misfiring. i didn't know a bad o2 sensor could make a car run so terrible! i will leave it unplugged until the new one i ordered arrives (permanently leaving it unplugged would permanently affect my MPG...)
if you havent sorted your car out yet, unplug the upstream o2 sensor, then take the car for a quick drive. if it runs perfect-- its the o2 sensor. if it doesnt change how it runs, try unplugging the downstream o2 sensor and see if that changes its performance.
I have the same code P0301 on my XD changed all 4 coils still misfires, any other ideas on the problem ? thank you.
Make sure the spark plugs are good, and be sure the coil connectors are secure.
@@saabtech3510 Thank you sir.
@@saabtech3510 coil connectors secure, plugs look good, little brown on outside white part. Use Toyota spark plugs 6 months ago. Idle is strong, take off give it gas starts to sputter; Fuel injectors ? Thank you.
Thank you for your help, great appreciated. 6 months ago changed all 4 with Denso spark plugs. Never in my life changing plugs have had a fouled plug, especially this brand in a short amount of time. With 4 new coils, plug, she is running great.
@@bluefootbooby1 Sometimes, with the bad coil, it fouls the plug to where it just won't fire like it used to. Seems to be one of those things. With the Saabs when we changed the coil pack, no matter how good the plugs looked, we always replaced them with new OE plugs. Package deal....they work together.
My cylinders were leaking oil so my coiI packs were full of oil I replaced the valve cover gasket cleaned off the coils and stuck them back in then changed out my spark plugs, still running a little rough so I changed the crank shaft sensor and it’s still idling/misfiring. I’m hoping the coil packs themselves are the problem I’m tired of wasting money on things I don’t need
Did you ever figure it out? Currently having the same problem and getting the lean code in bank one
I replaced all coils and plugs and number 2 misfires. don't know what to do
Try swapping 2 of the new coils and see if the misfire moves. Maybe a defective part. Check the plug too. Also check the connection to the coil. If all that fails, might need to check cylinder compression.
@@saabtech3510 could be bad coil even tho it's new. didn't think of that lol thank you. I also ordered new injectors. hope it does the trick
Let’s say you get a cylinder 1 misfire code and you want to drive it home can you disconnect the fuel injector for cylinder 1 and drive it to avoid unburned fuel in the exhaust?
Interesting idea. 🙂
I changed the coils and it is still misfires any suggestions
You should replace the spark plugs too. If it still misfires, might need to do a compression test. (Also, if you did not use the Denso OE coils, the cheap ones often don't work well.)
I replaced my spark plugs and next step is to replace the coils. Keep me updated after you did the compression test.
Michael Zepeda I would like to know as well
Where did you get those for 70 bucks? They are 130 each.
Go Bills!
I had to search around on ebay for about 30 minutes before I found this best price for 4 OE Denso coils. Sometimes you have to search a bit for car parts on ebay, also being careful you are getting the genuine parts.
Here is where I got my four coils for $68 www.ebay.com/itm/4PCS-Genuine-OEM-Ignition-Coil-90919-02240-For-Toyota-Yaris-Prius-A-B-Echo-1-5L/273350222148?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Amazon all day
Meat and potatoes buddy