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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269

Then we have the later 930's with Lambda circuit. So if they are trying to maintain about 14.7 AFR, the motor might be running as much as a point richer.

If one keeps the air pump and is running a Wide Band O2 the info is going to be misleading.

I suspect it would be good to take the belt off the injection pump and set or verify the AFR's. Then reinstall.

I was wondering if this was addressed in the factory procedure for setting CO or checking AFR's?

I am wondering if the factory CO is what, 1 to 1.5% on a stock car and we set it at 3% on a car w/o the air pump, are they pretty close to the same thing?

I am also interested in the air pump reducing lag.
Old 01-01-2010, 06:44 PM
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