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P0108 Diagnostic Trouble Code Discussion for March 2006

Manifold Air Pressure Sensor Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0108
Help Request Posted
1998 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 1GNDT13W5W
P0108: MAP Sensor Circuit High Voltage. This happens to be my son's vehicle (of course). This vehicle backfires just about everytime it starts (that's when the symptons first occured). It is running excessively rich. Injector on time varies between 3.8 to 4.1 ms. MAP is at 1.68 at idle. Fuel trim wa...
March 06, 2006