GM Repair Problems? Ask GM Repair Expert Now.
Hi Just the P0300 code ?
What tool are you using to check for codes .
Will you be doing the repairs if yes do you have the following tools .
Fuel pressure tester .
Compression tester .
Tool with live date ,
Okay what i suggest you do first is a fuel pressure test as the P0300 is for multiply misfire meaning all cylinders are misfiring .
Can you do a fuel pressure test .