MAF malfunction and running lean
Thread Starter
Registered User
Joined: Sep 2000
Posts: 27
From: No Attleboro MA USA
MAF malfunction and running lean
hey guys
i got codes 100 (MAF malfunction) and 171, 174 ( R+L banks lean)
I cleaned the MAF sensors w/ electronics cleaner and put fuel injector cleaner and a new fuel filter on the car. Its still throwing the same codes, gonna check my fuel pressure when I can borrow a gauge, any ideas on the MAF? Am I on the right track guessing that my fuel pump might be going? would bad O2 sensors affect this? I checked for exhaust leaks, plugs and wires look ok too. car only has 60k easy miles. thanks for the help
i got codes 100 (MAF malfunction) and 171, 174 ( R+L banks lean)
I cleaned the MAF sensors w/ electronics cleaner and put fuel injector cleaner and a new fuel filter on the car. Its still throwing the same codes, gonna check my fuel pressure when I can borrow a gauge, any ideas on the MAF? Am I on the right track guessing that my fuel pump might be going? would bad O2 sensors affect this? I checked for exhaust leaks, plugs and wires look ok too. car only has 60k easy miles. thanks for the help
Registered User
Joined: Mar 2001
Posts: 2,667
From: SLC, UT
To me it sounds like you've got a shot MAF....
Easiest way to check would be to swap in a known good one...
I just got a jode 100 and my car ran like crap... I unpluged the MAF(PCM went into Speed Density Mode), car ran 100 times better... so I got a new MAF... Solved the problem.
Easiest way to check would be to swap in a known good one...
I just got a jode 100 and my car ran like crap... I unpluged the MAF(PCM went into Speed Density Mode), car ran 100 times better... so I got a new MAF... Solved the problem.
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