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Re: What can make an engine run rich but the ECM detects lean
Posted to Technical Discussion Forum on 11/30/2009

This van is fixed and gone.

Here is the end of it, basics, basics, basics.

What the problem turned out to be was my fuel pressure gauge was inaccurate and the actual fuel pressure was 50psi, engine running. (how it ran, much less ran good, at that low a pr... Login to read more.