2001 Saturn LS200 2.2L with engine codes P0300 and P0301 with rad fan on

Question

I Replaced coil pack for a P0304 lasted one day then MIL came back flashing P0300 then P0301 Rad fan on. I replaced all plugs and ICM It also has a heavy raw fuel smell from exhaust. smooths out at about 2500 rpm any thing below is a dead miss. This car does not have an egr or MAF. Checked intake and vacuum lines for leaks. Did compression test all cylinders around 190 psi. What Next???

Answer 1

P0301 Misfire cylinder 1

Possible the fuel injector is stuck open , check the oil level and condition for raw fuel, sparkplug wire and sparkplugs you can rule that out, this still the ignition coil which can cause the problem,

 

The ignition coil are usually suspect, if the compression is even if you use another known good ignition coil

What commonly over looked is the fuel pressure regulator just check to see fuel is seeping out thru its vacuum connection.

Answer 2

P0300 Saturn Code - Engine Misfire Detected
Read more: https://www.autocodes.com/p0300_saturn.html

P0301 Saturn Code - Cylinder 1 Misfire Detected
Read more: https://www.autocodes.com/p0301_saturn.html

P0304 Saturn Code - Cylinder 4 Misfire Detected
Read more: https://www.autocodes.com/p0304_saturn.html