misfire codes P0300 P0301 P0302 P0303
08-08-2019, 12:07 PM
#26
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Join Date: Jul 2019
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W211
Still No clearing the codes
Just so you know I had already replaced plugs, wires, coils, MAF sensor, fuel filter, crank position sensor, replaced valve cover gaskets, and replaced intake manifold gaskets along with just about all vacuum lines. Compression was good as well as fuel pressure. The cats were the last thing it could have been.
11-13-2019, 04:57 AM
#27
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2007 s600
Taken It to the shop and no luck figuring It out, I haven’t done th MAF or gasket though. Everything from sparks, coils, cat, vaccum lines, 02 sensor, good fuel check, compression both wet and dry and even checked the fuses. No luck, looking to replace the replaced intake manifold.
I'm having similar problems check engine came on tonight and ran diagnostic test on my 2007 s600, 7-12 cylinders misfiring, also p2057 p20579 p2059 twc codes came on.
05-16-2020, 01:00 PM
#28
Newbie
Taken It to the shop and no luck figuring It out, I haven’t done th MAF or gasket though. Everything from sparks, coils, cat, vaccum lines, 02 sensor, good fuel check, compression both wet and dry and even checked the fuses. No luck, looking to replace the replaced intake manifold.
