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P1171 Diagnostic Trouble Code Discussion for March 2007

Fuel System Lean During Acceleration

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Trouble Ticket Help Requests for DTC P1171
Help Request Posted
1999 Pontiac Grand Am SE 2.4L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1G2NE52T2X
P1171: Fuel System Lean During Acceleration. this car has a stumble and misfire on #1 under heavy accel. we have scoped all the injectors they all look good, moved #1 and #4 and our misfire stays on #1 it seems like an ignition misfire. could a bad injector driver cause this bad of a miss? voltage drop b...
March 30, 2007