Quote:
Originally Posted by GP99GT
rear O2 doesnt effect fuel trims it just tells if the cat is working properly or not...TPS? probe the TPS and see if it has a clean sweep of voltage from 0 throttle to full
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That's what I was just thinking, the rear 02 shouldn't have an effect on performance. It would be the front O2 sensors showing a lean condition that could cause problems. Could be a cracked hose or air leak causing the lean blip and stumble.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
Last edited by JL8Jeff; 10-07-2009 at 08:05 PM.
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