Help! '09 Cobalt P0300 - P0304 Engine Codes!!!
2009 Chevrolet Cobalt, 2.2L, Engine Code P0300, P0304
I have replaced the spark plugs, tested the ignition coils (all work), replaced the Intake and Exhaust Solenoids (This cleared up some other codes and eliminated the rough idle), but I am still receiving a P0300 and P0304 codes. I swapped the ignition components (Plug and Coil) from Cylinder 1 to Cylinder 4 to see if the misfire followed the cylinder and it did not.
Now I am being told to look at the Camshaft Position Sensor and if not that, the ignition module. Which is more the likely the culprit?
Also, if it is the CPS, do I have to manually turn the crankshaft to put the cylinders in a specific position prior to replacement?
Thanks in advance for any assistance!