P1221 Diagnostic Trouble Code Discussion for December 2004
TP Sensor 2 Signal Correlation
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| 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 |
