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| Latest | 0 Rplys |
09-14-2004, 02:06 PM
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#1 | |
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AF Newbie
Join Date: Sep 2004
Location: Hereford
Posts: 2
Thanks: 0
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325i high CO & HC
My 1990 325i has high CO & HC.
The cyl head has been reconditioned and new HT Leads ,plugs, dizzy cap, rotar arm have been fitted. Full diagnostick checks don,t show any problems apart from the high HC & CO. There are no fault codes on the ecu. Airflow meter was suspected. 2 factory recon airflow meters were fitted, both gave extremly high HC & CO and would not adjust enough to reduce the levels. A new BMW airflow meter was fitted and gave extremly low HC & CO and would not adjust enough to run properly. Any ideas Pleeeese. |
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09-17-2004, 06:22 PM
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#2 | |
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AF Enthusiast
 Join Date: May 2004
Location: seattle, Washington
Posts: 760
Thanks: 0
Thanked 2 Times in 2 Posts
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Re: 325i high CO & HC
There's a connector [ C191 ] under the throttle housing, check it for corrosion. Also check fuel pressure.
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