P1220 Diagnostic Trouble Code Discussion for March 2009
TP Sensor 2 Circuit Malfunction
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| Help Request | Posted | |
| 2003 GMC Envoy XL SLE 4.2L No Start VIN: 1GKET16S73 P1220: testing and results. ... performed first fuel pressure and compression in spec, injector pulse and spark on all cyl. Replaced spark plugs due to extreme carbon fouling. Codes P0622, P1523, and U1000 stored in memory but not current codes. Clear codes and attempt to start, P1120 an... |
March 16, 2009 |
