Fuel and missfire
10-14-2019, 03:52 PM
#1
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2002 C32 AMG
Fuel and missfire
Hi, my W203 C32 is misfiring on sylinder 4 and 5 and randome sylinders due to lack off fuel preshure, is the fuel pump bad or is it the fuel sending unit??
Last edited by Raggi; 10-14-2019 at 03:55 PM. Reason: Gramar
10-15-2019, 04:56 PM
#2
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I would start with checking the fuel pressure on the rail. should be around 55-58psi steady. First thing i would suspect is the fuel filter which has the pressure regulator built in.
