P1221 Diagnostic Trouble Code Discussion for July 2009
TP Sensor 2 Signal Correlation
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| Help Request | Posted | |
| 2003 GMC Envoy SLT 4.2L MIL Lamp on VIN: 1GKDT13S73 P1221: TP Sensor 2 Circuit Malfunction. ... with codes p1221 p1271 and p1481. the code can be cleared and normal engine operation will resume for up to a couple of days. vehicle will also intermtitently cruise at 40mph. without accelerator being touched. of course th... |
July 02, 2009 | |
| 2003 Chevrolet Trailblazer North Face 4.2L Hesitation, Surge, MIL Lamp on VIN: 1GNET16S53 P1221: TP Sensor 2 1-2 Correlation. I just replaced the PCM in hopes this would clear up the problem,But It didn't. The 5 Voltage problem is the culprit. Using My DVOM and the 5 volt Pin,coming from the PCM it will vary from 3.00 volts to 4.50 volts,Can't find anything else wrong,Just the varyi... |
July 25, 2009 | |
| 2000 Honda Passport EX 3.2L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 4S6CK58W7Y P1221: Throttle Position Sensor 1-2 Circuit Performance. this truck has been to 2 dealerships and 1 other independent shop. the problem is after a stint of driving the truck looses power and starts to miss the codes listed are the only ones that show up the low voltage code is from a faulty alternator. the problem i... |
July 27, 2009 |
