P1637 Diagnostic Trouble Code Discussion for April 2010
Generator 'L' Terminal Circuit Malfunction
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| Help Request | Posted | |
| 2002 BMW 540i 4.4L Poor Idle Quality, Surge, MIL Lamp on VIN: WBADN534X2 P1637: Throttle Valve Actuator. ... / Limp Mode and MIL on with codes P1637 and P0021. The car has a new MAS and Throttle Body. I reset adaptaions and that did nothing. So I did a hard reset, cleared adaptations and codes and started the car. It ran great, even under load. I let it idle for ... |
April 09, 2010 | |
| 2002 BMW 540i 4.4L Poor Idle Quality, Surge, MIL Lamp on VIN: WBADN534X2 P1637: Throttle Valve Actuator. ... / Limp Mode and MIL on with codes P1637 and P0021. The car has a new MAS and Throttle Body. I reset adaptaions and that did nothing. So I did a hard reset, cleared adaptations and codes and started the car. It ran great, even under load. I let it idle for ... |
April 16, 2010 |
