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Cavalier seh
Posted: Sun Feb 05, 2017 6:57 pm
by camy
Done a paperclip test on the cavalier today and codes 21 and 65 came. 21 is throttle position sensor and 65 is carbon monoxide potentiometer does anyone know whereabouts the carbon monoxide potentiometer is?? It's a 2.0 seh engine
Re: Cavalier seh
Posted: Sun Feb 05, 2017 8:45 pm
by Steven715
Im not going to pretend to know what this is, but I found this by searching on google,
http://www.migweb.co.uk/forums/engines- ... meter.html
Re: Cavalier seh
Posted: Sun Feb 05, 2017 9:46 pm
by camy
Cheers mate I'll check it out first thing in the morning
Re: Cavalier seh
Posted: Mon Feb 06, 2017 10:14 am
by Robsey
Well every day is a school day.
I had absolutely no idea / never heard of it.
Re: Cavalier seh
Posted: Mon Feb 06, 2017 12:06 pm
by Mk3alan
I tweaked mine once as the emissions test showed higher than it was previously, still in spec but had crept up.
Think I made a note of how much I moved it.
Alan
Re: Cavalier seh
Posted: Mon Feb 06, 2017 4:52 pm
by camy
What way do you turn it mate and how do I clear the codes?? I've had the battery off for 30 minster but still there
Re: Cavalier seh
Posted: Mon Feb 06, 2017 8:23 pm
by Steven715
The engine management light should go out when the problem has cleared, and I believe the code clears after 20 non fault ignition cycles if that makes sense. I suspect that if your engine does have this potentiometer then it sounds like it could be your problem, unfortunately I don't know what it is or looks like but I suspect it will have at least 3 wires going to it and if it is just a potentiometer then you should be able to test it with a multimeter using the ohms range.