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P1221 Diagnostic Trouble Code Discussion for December 2004

TP Sensor 2 Signal Correlation


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Trouble Ticket Help Requests for DTC P1221
Help Request Posted
1999 Pontiac Firebird 3.8L MIL Lamp on, limited power VIN: 2G2FS22K5X
P1221: TP Sensor 1 2 Performance. ... problem that of course won't act up when we have the vehicle. The “reduced engine power" light comes on along with the MIL lamp. Code P1221a (TP sensor 1-2 performance) is set in memory. The problem has occurred twice in the past few days with the c...
December 14, 2004
1999 Pontiac Firebird 3.8L MIL Lamp on, limited power VIN: 2G2FS22K5X
P1221: TP Sensor 1 2 Performance. ... problem that of course won’t act up when we have the vehicle. The “reduced engine power" light comes on along with the MIL lamp. Code P1221a (TP sensor 1-2 performance) is set in memory. The problem has occurred twice in the past few days with the c...
December 14, 2004