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P1171 Diagnostic Trouble Code Discussion for December 2015

Fuel System Lean During Acceleration


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Trouble Ticket Help Requests for DTC P1171
Help Request Posted
2000 GMC Sonoma SL 2.2L Surge, Cuts out, MIL Lamp on VIN: 1GTCS1447Y
P1171: Fuel System Lean During Acceleration. Truck came in with a complaint that the transmission would slip under heavy acceleration, WOT either on a hill or during passing. Transmission is working fine but the engine feels like it runs out of power. O2 goes lean when throttle is right at WOT, pull it b...
December 01, 2015