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P1171 Diagnostic Trouble Code Discussion for September 2005

Fuel System Lean During Acceleration

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Trouble Ticket Help Requests for DTC P1171
Help Request Posted
1999 Isuzu Amigo S 3.2L MIL Lamp on VIN: 4S2CMS7W3X
P1171: Fuel System Lean During Power Enrichment. ive checked grounds to the sensors all ok. on the scanner i can see the sensors doing their thing up and down, they're not stuck on low voltage. fuel pressure is ok, fuel filter was plugged. upstream o'2 are also functioning. initially the system had a lean o'...
September 20, 2005