P0300 Jeep -

Question

Runs fine but happened when cold. How do I remove the engine light

Answer 1

HI there,

Options for clearing the light.

Disconnect the battery negative cable for 24 hours,

Have a parts store clear it with a code reader.

Get your own code reader and finally a scan tool.

I suggest not disconnecting the battery, it can lead to other issues. Everything will reset, this includes the idle speed which can be a headache to relearn.