Could a bad O2 sensor cause your car to go dead while driving and not restart? I just replaced alternator and had this happen now I'm showing P0131, P0132 and P0141 codes
Please am a mechanic and have been working on Chevrolet Colorado for More than a week,the machine was difficult to start. now it's start and off again unless I used my to cover the hole on the carburetor to the air filter Please help me 🙏🙏🙏my boss is on my neck
And again I have to put Petro inside the carburetor before it start but when the fuel burn then the engine stop but when I use my hand to cover the air flumetre to the carburetor the engine will be on for five minutes
So much is missing from this video if someone actually wanted to test the o2 sensor itself is capable of producing a useful signal, or if all of the sensor wiring on the vehicle is actually good?? The codes you showed have absolutely nothing to do with the correct function of the sensor heater element, however the limited info you showed here only relates to the sensor 'heater' element? The codes you referenced are related to incorrect/out of normal range sensor 'signals' received by the pcm?? I guess misleading or missing information is what RUclips and the internet is all about nowadays. All you did here is verify the sensor heater element was potentially intact, and there was 'unloaded' voltage on the (poz +) harness wire for the heater element. What about testing the integrity of the ground wire for the heater element? What about the signal and shield wires on the vehicle? What about the ability of the sensor itself to produce an actual voltage output when it is at operating temp? What about the heater element, can it actually create any heat, or does the element draw the correct amount of current when it's powered up? Are the signal + sheild wires good all the way to the engine computer? Is the (poz+) wire on the vehicle for the heater element able to carry any current to allow the heater to work properly? Are the harness socket terminals tight enough to provide a good electrical connection?...etc etc etc. You could've included a lot more information and tests to make this video somewhat helpful to someone who wants to diagnose these codes correctly, maybe then they could actually save themselves some money after doing a thorough and accurate diagnosis🤣
I agree, what he did was good basic diagnostic, and if some of the things he mention is not ok, then the sensor or the voltage in the car is probably to blame, but there are sooo many things not tested for, in this video.
Agreed, the bench test does not tell if the sensor is good or bad, what he measures is only to test if the heater inside the sensor is ok. That's the 2 white wires. The oxygen sensor is the 2 black leads, the sensor part is not at all tested in this scenario. The heater is only in the sensor because the sensing part only works at higher temperatures, but the sensor part can easily be broken or bad, even if the heater is on. Telling people that as long as there is 3-10 ohms at 2 terminals = The sensor is good...Is simply wrong.
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Love your video I love working on my car to save money and cut out the middle man labor cost to DIY thank You
Thanks SO much for posting this! This was extremely helpful, and you explain things perfectly well!
method works for traditional o2 sensors however does not work for modern cars that use air fuel ratio sensors
Great reminder. Refresh my memory. Gracias. Nice s2000
Great video as always! You do a great job and keep it up!!!
Well explained video. The S2000 is one of the best cars Honda ever produced😀
Could a bad O2 sensor cause your car to go dead while driving and not restart? I just replaced alternator and had this happen now I'm showing P0131, P0132 and P0141 codes
Timing might be off
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video chẳn nói lên điều j cả.
Please am a mechanic and have been working on Chevrolet Colorado for More than a week,the machine was difficult to start. now it's start and off again unless I used my to cover the hole on the carburetor to the air filter
Please help me 🙏🙏🙏my boss is on my neck
And again I have to put Petro inside the carburetor before it start but when the fuel burn then the engine stop but when I use my hand to cover the air flumetre to the carburetor the engine will be on for five minutes
So much is missing from this video if someone actually wanted to test the o2 sensor itself is capable of producing a useful signal, or if all of the sensor wiring on the vehicle is actually good??
The codes you showed have absolutely nothing to do with the correct function of the sensor heater element, however the limited info you showed here only relates to the sensor 'heater' element?
The codes you referenced are related to incorrect/out of normal range sensor 'signals' received by the pcm??
I guess misleading or missing information is what RUclips and the internet is all about nowadays.
All you did here is verify the sensor heater element was potentially intact, and there was 'unloaded' voltage on the (poz +) harness wire for the heater element.
What about testing the integrity of the ground wire for the heater element?
What about the signal and shield wires on the vehicle?
What about the ability of the sensor itself to produce an actual voltage output when it is at operating temp? What about the heater element, can it actually create any heat, or does the element draw the correct amount of current when it's powered up?
Are the signal + sheild wires good all the way to the engine computer?
Is the (poz+) wire on the vehicle for the heater element able to carry any current to allow the heater to work properly?
Are the harness socket terminals tight enough to provide a good electrical connection?...etc etc etc.
You could've included a lot more information and tests to make this video somewhat helpful to someone who wants to diagnose these codes correctly, maybe then they could actually save themselves some money after doing a thorough and accurate diagnosis🤣
I agree, what he did was good basic diagnostic, and if some of the things he mention is not ok, then the sensor or the voltage in the car is probably to blame, but there are sooo many things not tested for, in this video.
Info missing for wideband sensor and no rhythm or reason for electrical testing procedure used here....this is not correct, sorry.
Agreed, the bench test does not tell if the sensor is good or bad, what he measures is only to test if the heater inside the sensor is ok.
That's the 2 white wires. The oxygen sensor is the 2 black leads, the sensor part is not at all tested in this scenario.
The heater is only in the sensor because the sensing part only works at higher temperatures, but the sensor part can easily be broken or bad, even if the heater is on.
Telling people that as long as there is 3-10 ohms at 2 terminals = The sensor is good...Is simply wrong.