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Author Topic: Fuel Dilemma  (Read 22 times)

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november2021

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Fuel Dilemma
« on: November 15, 2021, 12:19:03 PM »
I am having a fuel dilemma on my 1998 LS1 that I am hoping can be solved here. Lean condition from all 4 O2ís with lean at W.O.T. Iím not finding any vacuum leaks (idle is low too), no exhaust leaks near O2ís, and 60 psi from fuel pump. I suspect mass air flow sensor, and most retailers have 3 prong plug in but this one is five prong. Help me out!
Frank Kellogg Jr.

firebirdclub

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Re: Fuel Dilemma
« Reply #1 on: November 15, 2021, 12:31:49 PM »
There have had lean issues with oil covered MAF sensors before.

The 5 wire MAF has a air temp sensor inside of it. The 3 wire doesnít. Iím betting someone has put the 5 wire MAF on your car with a adapter harness.

Poke around your harness and it should have the original 3 wire MAF plug and the 2 wire external air temp sensor plug there.  It should unless someone cut and spliced them.

Anthony Walch
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Re: Fuel Dilemma
« Reply #1 on: November 15, 2021, 12:31:49 PM »


 

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