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P1516 Diagnostic Trouble Code Discussion for October 2010

TAC Module Throttle Actuator Position Performance


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Trouble Ticket Help Requests for DTC P1516
Help Request Posted
2003 Chevrolet Silverado 2500 HD 6.0L Stall, Misfire, MIL Lamp on VIN: 1GCHK23U43
P1516: TAC Module Throttle Actuator Position Performance. Intermittent stall. Have been unable to duplicate customer complaint at various speeds, decel, loads, etc. O2 sensor is indeed very lazy, only occasionally will it vary from 450mV, even with butane enrichment or simulating lean condition. Fuel regulator not le...
October 06, 2010
2003 Chevrolet Silverado 2500 HD 6.0L Stall, Misfire, MIL Lamp on VIN: 1GCHK23U43
P1516: TAC Module Throttle Actuator Position Performance. Intermittent stall. Have been unable to duplicate customer complaint at various speeds, decel, loads, etc. O2 sensor is indeed very lazy, only occasionally will it vary from 450mV, even with butane enrichment or simulating lean condition. Fuel regulator not le...
October 06, 2010