Nissan Repair: p0300, nissan pathfinder, key light

Question
Hi its jose for the 199.5 Nissan pathfinder p0300 code when u turn the key light stays on when car is running sometimes is on steady, sometimes it goes off for hours sometimes it links non stop.

Answer
Hi Jose -

Usually if the check engine light remains on and does not go off after a few seconds when you turn the ignition on, this indicates an issue with the ECM, or car's computer. Perhaps internally, the ECM is having trouble resetting the code.

Have you tried resetting it with the OBD?

Aloha
Calvin