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P1171 Diagnostic Trouble Code Discussion for November 2004

Fuel System Lean During Acceleration

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Trouble Ticket Help Requests for DTC P1171
Help Request Posted
1997 Chevrolet Cavalier 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3G1JF5245Y
P1171: Fuel System Lean During Acceleration. This came in with compaint of Had Coolant Flush done NOW it runs poorly.. scan & found two codes.4 gas readings real high - repaired rear o2 connection , repaired pcv leak.. Then I was at the ecm (in rf facia under rf fender well)to start checking ecm grou...
November 09, 2004
2001 Volvo V70 2.4L MIL Lamp on VIN: YV1SW58DO1
P1171: long term fuel trim at upper limit. Came in with mil on.p1171- fuel trim at upper limit. Checked air mass meter voltage, 1.35 at idle. My info says it should be above 1.41 at idle? Cleaned air mass meter with intake cleaner, no change. Fuel pressure is 55psi at idle which is exactly spec. Manifo...
November 10, 2004