Porsche Cayenne P2138 Engine Trouble Code

When the check engine light comes Porsche Cayenne P2138 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

Porsche Cayenne P2138 Code Meaning :

When you check Porsche Cayenne car engine light came on code P2138 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However manufacturer may have a different definition for the P2138 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P2138 Fault Symptoms :

Porsche Cayenne P2138 Possible Solution :

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

Parts or components should not be replaced with reference to only a P2138 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.