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P0176 Diagnostic Trouble Code Discussion for March 2011

Loss Of Flexible Fuel Calibration Signal

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Trouble Ticket Help Requests for DTC P0176
Help Request Posted
2000 Ford Ranger XL 3.0L Excessive Emissions, No Start, Cuts out, Misfire VIN: 1FTZR15V6Y
P0176: Flexible Fuel Sensor Circuit Malfunction. ... so poorly (rich). The PCM had a P0176 stored & the injector pulse width was very high. All data appeared normal except for the flex fuel sensor which was high (170 hz). I disconnected the FF sensor & used a signal generator (shop tool) to produce a...
March 31, 2011