runs strong but stalls at idle O2 readings normal but running too lean, mass air new o2 new (1) no intake leaks help
- posted
18 years ago
98 f250 rough idle running lean
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- posted
18 years ago
contradictory! What are the codes?
Pings?
Stalls at idle, rough running? Or stalls at idle just too low RPM, but smooth?
Why did you buy a new MAF? Why new O2 sensor? How many miles? Change the fuel filter (not likely the prob, but...)?
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- posted
18 years ago
new fuel good pressure 35psi good vacuum 18 runs rough when about to stall
165000 codes are po171 po174 p1131 p1154 no ping no black smoke