P0120 Diagnostic Trouble Code Discussion for June 2010
Throttle Position Sensor Circuit Malfunction
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| Help Request | Posted | |
| 2001 Mercedes-Benz C320 3.2L Poor Idle Quality, Hesitation, Surge, MIL Lamp on, idles too high VIN: WDBRF64J21 P0120: tps. This car has had this problem for a while and, the customer has been doing his own trouble shooting and after replacing a bunch of expensive parts he gave up and brought it to me. the only code I have gotten so far is a P2004/P0100 maf senosor. MAF readings ar... |
June 14, 2010 | |
| 2003 GMC W4500 Forward W4S042 6.0L MIL Lamp on VIN: 4KDB4B1U83 P0120: PCM detects that the TP sensor 1 signal or TP sensor 5-volt reference voltage is outside the predetermined range this DTC sets. Vehicle came in with P0120 and P2135. Previously worked on by another shop and throttle body assm. replaced. I only found codes in system never could duplicate fault or see anything on scanner, voltmeter or scope. Warrantied T/B assm. through local dealer and ... |
June 28, 2010 |
