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Old 06-28-2020   #32
-=Jeff=-
 
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,163
Default Re: Extreme rich condition

Quote:
Originally Posted by Hib Halverson View Post
You likely don't need to fuss with taping a pressure gauge to the windshield?at least not yet.

If you tested fuel pressure per the service manual and saw 45-psi peak after key off then the pressure drops. Your pressure is low?should be 48-55 psi?and you have a leak somewhere.

A possible leak coupled with black sooty plugs tells me to investigate the possibility of a faulty FPR, faulty injectors, faulty ball check in the pump or anything else which can bleed off fuel pressure.
Considering this is the same with the OEM and Jerry's FPR, I am guessing that probably is not the case, but still a possibility.
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