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Old 11-01-2019, 07:25 PM   #6
Scooby Newbie
Member#: 479655
Join Date: Dec 2017
Location: Omaha Ne
2002 Impreza wrx


Originally Posted by Easyy View Post
Just went and reset the ECU and went for a spirited drive. No dice, still idles lean. And yes it is a "prosport" afr, my bad lol.

I checked the IACV already, thing looks brand new. Ill look in to the fuel pressure regulator.

Also whatís weird is when you unplugged your maf your car ran still...? When I did that my car turned off immediately. Which ruled out the maf in my case. But replaced anyways. My AFRs were loopy, jumping from low 13s to high 15s and occasional 17ish. When the FPR was replaced it fixed the idle AFRs. My injectors were a culprit of high af learning values and long cranks.

Look into why your car would still run with MAF unplugged. And go from there.(if Iím reading your post correctly)? Iím not familiar with Prosport? Is that a afr gauge?
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NicMonte is offline   Reply With Quote