P0120 Diagnostic Trouble Code Discussion for April 2004
Throttle Position Sensor Circuit Malfunction
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| Help Request | Posted | |
| 1999 Mitsubishi Eclipse GSX 2.0L Excessive Emissions, Poor Idle Quality VIN: 4A3AL54F6X P0120: TP Sensor Circuit Malfunction. I tested several items, and scanned for causes of such a rich mixture. Found only one probable cause, the MAF. The spec for air flow per Alldata factory data is 4-5 g/sec at idle; & 22 - 44 Hz at MAF. I see(per scan data) 12 - 13 g/sec, and at MAF measure ... |
April 20, 2004 |
