Discussion Starter · #1 ·
I think I have a bad fuel injector on cylinder #1 or bad EGR valve? Which one? I swapped ignition coil and spark plug and still have P0301. The smell coming out of the exhaust pipe is so rich and so strong odor. Is there a way to test the resistance of the fuel injector without removing the manifold or the injector itself? I am go to check the compression on cylinder #1. What is the procedure of checking the cylinder compression?