VE Commodore O2 Troubleshooting
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- Опубликовано: 11 сен 2024
- This VE Commodore has been recently purchased with a promise that the check engine light will be extinguished by replacing the O2 sensors installed by the seller.
Guess what? Yup, the check engine light is still on! How do you test an O2 sensor? Do you replace 1 or all of them? Is cheaper better?
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Disclaimer:
MiracleMAX wants you to be safe, however, no guarantee can be given against improper use or unauthorised modifications on the information provided. The repair shown in this video is carried out at your own risk and any property damage or injury is your own responsibility. Please ensure you carry out this repair safely using approved safe work practices, correct use of recommended tools and equipment. This video is educational only and is no guarantee of a result if done incorrectly. Any injury, damage or loss due to incorrect use of tools, information or equipment is the sole responsibility of the person carrying out the repair and not MiracleMAX
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And here I thought engines were mostly symmetrical. Good tip identifying banks!
Yup, that number 1 piston has to go somewhere! 😁
Excellent video. You always do fantastic Commodore videos.
Thanks, keep watching, there are plenty more on the way!
Perfect timing.
I am doing this exact fault finding today don't know what brand of O2 sensors are in but like this instance, these were recently replaced too.
But I will give these parts the benefit of the doubt because the terminals were pushed into the housings as well.
Also, on the right poz1 post O2 sensor there were two severed wires within the sleeve.
One on the heater and the other on the sense wire.
I can't see how this has happened as there is no obvious damage on the sleeve.
Looks like they have been cut with side cutters but must have been squashed and cut that way.
The engine has apparently been replaced recently too.
Me thinks a Weeties packet mechanic backyarder did an engine swap and crushed bits n pieces inducing problems.
The truth may have been told to me but not the whole truth.
Gunna take it for a good flog up the road tomorrow with me G-Scan2 and see if it all works as it should and with no codes.
I've often found getting good reliable info/ feedback from the owners that play a little to be almost impossible.
They don't like to admit to playing with stuff they don't understand.
Like I say to them "A little knowledge can be dangerous" and leave it at that for their own interpretation.
You are totally correct. The customer can be your best friend or worst enemy. They can send you on a wild goose chase giving only half the information or half truths. Makes our job twice as hard. Thanks for sharing your comment.
Thx MM. Very thorough as usual.
Thanks Nigel for your comment 😉
My experience is to always use Bosch O2 sensors on Commodores.
There is also a tech bulletin for a fault with the o2 harness on VE where water from the AC drain works its way along the harness into the post cat bank 2 sensor plug causing heater circuit issues. The fix is to unwrap the harness tape and separate out the o2 wires from the trans loom and then make the break out earlier in the harness. Rewrap the harness. Reroute the harness to run along the transmission a bit more further back. This puts it away from the drain.
This is also relative to 06/07 VZ as well.
I have heard that Bosch is the best choice. Will keep that in mind for next time. Good information. Do you know the TSB number? Similar situation with the VZ etc where the oil from the oil sensor unit has capillary action dragging the oil into the PCM.....stay tuned for a case study on that one.
@@MiracleMAX No I don’t know the number but was reading it just a few days ago.
@@MiracleMAX Oh! That’s where I found it! It was buried in the Holden Barina workshop manual. I might be able to find it again and let you know.
@@FuManchu5ltr That'd be great - thanks 👍
@@MiracleMAX OK. After looking for ages, found it. TL0109-6C01
However it wasn’t VE or VZ as I thought. It’s VT-VX Gen3. However I have previously had the same issue on a VE and a VZ without knowing this bulletin existed. So assume this Tech/Sevice Bulletin is handy as a guide.
Re: Water into the plug from AC.
👍
Thank you 😉
Personally I'll never knowingly use a Goss product again. Too much of a delay and lack of support from Goss to be able to guarantee decent product quality checks.
I haven't had any issues with the product. I deal with a good local parts supplier. Your experience may be different.
@@MiracleMAX yeah, I seemed to either be an exception or just fussy with how they reacted too slow out of specification. I ended up getting a great deal on genuine Bosch ones for my car and have not looked back since.
@@johndee68 Good to know! 👍