1991 American Motors Classic P0121 Fault Code Check

When you check 1991 American Motors Classic car engine light came on code P0121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However American Motors manufacturer may have a different definition for the P0121 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0121 1991 1991 American Motors Classic engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)

1991 American Motors Classic P0121 OBD-II Diagnostic Powertrain (P) Trouble Code Description 1991 American Motors Classic car P0121 OBD-II Trouble Code The throttle position sensor ( Reason For 1991 American Motors Classic P0121 Code The reason of 1991 American Motors Classic P0121 OBD-II Fault Code Check is P0121 Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance.

1991 American Motors Classic P0121 Possibble Fix Ways :

If the culprit is a poor fuel pressure regulator, then I suggest looking around for a replacement part and taking your car to your local mechanic for installation. If you're a skilled mechanic, then you should be able to install a new fuel pressure regulator easily. But if you're just starting out, it's always best to have the professionals take care of this job. Believe me, the fuel pressure regulator is not an easy part to install.

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P0121 1991 1991 American Motors Classic code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

What does fault code P0121 mean for 1991 American Motors Classic ? What does a diagnostic reading P0121 mean for 1991 American Motors Classic ? How to fix OBD2 Code P0121 for 1991 American Motors Classic ? What do we know about P0121 code for 1991 American Motors Classic ?