W220 Misfire Problem
08-01-2014, 07:07 AM
#1
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1999 ML320, 2002 E55 AMG
W220 Misfire Problem
Hello all, I have a 2003 W220 S500 with 157,000 miles. Random misfire codes PO300 and P0308. Changed spark plugs,wires,mass airflow, compression test good, coil packs good, injectors test good. Last guess is engine harness or ecu??
Any help would be greatly appreciated
Any help would be greatly appreciated
08-01-2014, 09:32 AM
#2
if your car has an ignition module i would definitely check that.
