P1221 Diagnostic Trouble Code Discussion for July 2020
TP Sensor 2 Signal Correlation
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| Help Request | Posted | |
| 2008 Chevrolet Colorado LS 3.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 1GCCS29E58 P1221: tps perf. ... in for not running.It had multiple codes & did not want to start or run hardly at all. codes were p0300,p0106,p0121, p0606 & u0073-00. next morning truck fires & & runs fine, cleared codes & truck idled & ran with only intermitt... |
July 07, 2020 |
