Help please High CO emmission from G16A 8v single EFI

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npjrogers@btinternet.com
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Help please High CO emmission from G16A 8v single EFI

Post by npjrogers@btinternet.com » Mon Apr 01, 2013 8:19 pm

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

Post by Jordi » Mon Apr 01, 2013 8:21 pm

I don't know the tech exactly. But when was it last serviced?
1988 Samurai - Truck Cab & Tray Back - 1.6 8v & HIF44 - Snorkel - Stack Exhaust - PAS, YJs & 33s - Trussed, Gusseted & Pumpkin Capped Axles - 4.3 R&Ps - 4.16 T/Box - Rear Air Locker - Full Float Back Axle & Discs - RCV Front Shafts - X-Eng Handbrake - Custom Fuel Tank
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Re: Help please High CO emmission from G16A 8v single EFI

Post by npjrogers@btinternet.com » Mon Apr 01, 2013 8:41 pm

Has had oil and filter replaced and plugs cleaned and timing checked in last 100 miles.
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Darrell
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Re: Help please High CO emmission from G16A 8v single EFI

Post by Darrell » Mon Apr 01, 2013 8:47 pm

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:
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npjrogers@btinternet.com
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Re: Help please High CO emmission from G16A 8v single EFI

Post by npjrogers@btinternet.com » Mon Apr 01, 2013 11:03 pm

Rhinoman has an identical Vit to me so I would love to hear his thoughts. I suspect a vacuum leak also.
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Re: Help please High CO emmission from G16A 8v single EFI

Post by npjrogers@btinternet.com » Tue Apr 16, 2013 10:02 am

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

Post by Rhinoman » Tue Apr 16, 2013 1:03 pm

Did you buy a tool from me a while back? what do your fuel trims and O2 sensor readings look like?
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