07 Saturn Ion PO300 code help!

Question

I have a 07 Saturn Ion and I recently had a tune up, injector O ring replaced and fuel cleaning done. Last month, my check engine light came on w/ PO300 code. I took my car to the shop and was informed that I had a leak in my intake gasket which was replaced. Now, my check engine light is back on and the code is p0304!

Answer 1

HI there,

This may or likely is a problem with one of the ignition coils or spark plug wires. This is not likely related to the original work.