Check Engine Light Gas Cap Code

The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap.

Check engine light gas cap code.

If your gas cap is not properly attached you may see a check engine light or a loose cap warning light on the dash. The gas cap is a part of the vehicle s evaporative emissions system and can cause problems with the system if it has an issue. This warning light can indicate a wide range of problems some minor and others much more serious. Code p0457 indicates the pcm has detected an evap leak most likely caused by the gas cap.

An improperly sealing fuel cap may cause an evap system leak which will set off. That being said there can be several reasons behind check engine light due to the gas cap failure. If the car has run for a considerably long time say 50 000 miles with the same gas cap it s safe to say that the reason is your gas cap is old weary and exhausted. Pay attention to the dashboard after the check engine light experience.

Code p0457 is typically caused by one of the following. It s a common scenario i see all too often. The gas cap code is a common diagnostic trouble code that might turn your check engine light on. You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed or you can use an obd ii code scanner to manually reset the system.

However if the light comes on right after filling up it. An illuminated check engine light is another symptom of a potential issue with the vehicle s gas cap. Common causes for p0457. I put together a video discussing a problem my neighbor had with nissan maxima four door sedan after they filled the fuel tank.

An illuminated check engine light. A leak at any part of the evap system including the gas cap can set a diagnostic trouble code. Check engine light comes on.