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Re: Vac hose to FPR came off
Posted by Dean (more from Dean) on Thu, 18 Mar 2004 13:30:13
In Reply to: Vac hose to FPR came off, Jeff in ATL, Thu, 18 Mar 2004 12:10:18
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When manifold pressure 0 guage, mixture is perfect.
When on boost, would go lean. DI and ECU would still attempt to enrich to avoid knock. System is open loop and might not signal a lean mixture CEL, but this would be possible if the ECU was so programmed.
Did you hear any knocking?
When at low throttle, -ve manifold pressure, runs rich. ECU and O2 sensor will try to reduce richness. No CEL? - no problem.
So only lean operation would be while on boost.
posted by 65.68.10...
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