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P1516 Diagnostic Trouble Code Discussion for February 2011

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 Poor Idle Quality, MIL Lamp on VIN: 1GCHK23U03
P1516: TAC Module Throttle Actuator Position Performance. When cruising check engine light comes on with a message on the dash that reads "REDUCED ENGINE POWER" and vehicle goes into limp in mode. If I clear the codes engine power goes back to normal until the problem happens again. Happens about every 5 mile...
February 03, 2011
2007 Chevrolet Tahoe LT 5.3L Poor Idle Quality, MIL Lamp on VIN: 1GNFK13027
P1516: TAC Module Throttle Actuator Position Performance. Vehicle came in for warning lights including mil, trac off, reduced engine power,check for tsb and none found. found noted codes, graphed scan data, found app 1 @ .94, app 2 @ .45, tps 1 @ 3.67, tps 2 @ 1.33 all at idle. Problem occurs at acceleration, depress...
February 22, 2011
2003 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GCHK23U03
P1516: TAC Module Throttle Actuator Position Performance. When cruising check engine light comes on with a message on the dash that reads "REDUCED ENGINE POWER" and vehicle goes into limp in mode. If I clear the codes engine power goes back to normal until the problem happens again. Happens about every 5 mile...
February 03, 2011
2007 Chevrolet Tahoe LT 5.3L Poor Idle Quality, MIL Lamp on VIN: 1GNFK13027
P1516: TAC Module Throttle Actuator Position Performance. Vehicle came in for warning lights including mil, trac off, reduced engine power,check for tsb and none found. found noted codes, graphed scan data, found app 1 @ .94, app 2 @ .45, tps 1 @ 3.67, tps 2 @ 1.33 all at idle. Problem occurs at acceleration, depress...
February 22, 2011