Porsche 3400 P0138 Engine Trouble Code

When the check engine light comes Porsche 3400 P0138 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 3400 P0138 Code Meaning :

When you check Porsche 3400 car engine light came on code P0138 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However manufacturer may have a different definition for the P0138 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0138 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0138 OBD-II Trouble Code The Heated Oxygen Sensor 2 (HO2S) (Rear O2 Sensor), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture P0138 code.

Reason For P0138 Code

The reason of P0138 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

P0138 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

P0137 Previous Engine Trouble Code For Porsche 3400

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