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Help please High CO emmission from G16A 8v single EFI

Posted: Mon Apr 01, 2013 8:19 pm
by npjrogers@btinternet.com
My CO IS 3.56 percent and an MOT fail. Pass would be 3.50 percent. My minimum idle seems to be 1000rpm. PCV is clean. What would be the most likely cause of my High CO?
Nick
Belfast

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Mon Apr 01, 2013 8:21 pm
by Jordi
I don't know the tech exactly. But when was it last serviced?

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Mon Apr 01, 2013 8:41 pm
by npjrogers@btinternet.com
Has had oil and filter replaced and plugs cleaned and timing checked in last 100 miles.

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Mon Apr 01, 2013 8:47 pm
by Darrell
I believe a vacuum leak is often responsible for high idle and CO.
Rhinoman who has recently joined the forum :thumbup: will be the most knowledgeable person and hopefully will be along to help.
I assume the check light is not on.
Dam ECU's are beyond me :er:

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Mon Apr 01, 2013 11:03 pm
by npjrogers@btinternet.com
Rhinoman has an identical Vit to me so I would love to hear his thoughts. I suspect a vacuum leak also.
Nick
Belfast

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Tue Apr 16, 2013 10:02 am
by npjrogers@btinternet.com
Darrell wrote:I believe a vacuum leak is often responsible for high idle and CO.
Rhinoman who has recently joined the forum :thumbup: will be the most knowledgeable person and hopefully will be along to help.
I assume the check light is not on.
Dam ECU's are beyond me :er:

Re: Help please High CO emmission from G16A 8v single EFI

Posted: Tue Apr 16, 2013 1:03 pm
by Rhinoman
Did you buy a tool from me a while back? what do your fuel trims and O2 sensor readings look like?