C230 miss under load
01-04-2015, 02:42 AM
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C230 miss under load
Hey yall. I have a 1999 c230 komoresssor model. Car has a low rpm miss under hard accelleration. Drives fine but once you step on it it misses until its passed 3500 rpms. Lacks power and picks up slow. After 3500 runs smooth. Has new e3 plugs,coils, wires, air filter, fuel filter. Ran through the vacuum lines this evening and replaced all bad pieces. Has new mass airflow sensor. Car ran great after initial tune up and hs gradually gotten worse. Whole time span if even is less than a month.
01-05-2015, 04:31 AM
#5
check plug gap to make sure it hasn't expanded.
01-05-2015, 09:27 PM
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I think i have it narrowed down to a fuel inhector. Had the computer checked, down stream o2, which isnt there and wasnt when i got the car and wouldnt matter any how. And a cylinder 4 misfire. That or a coil, the coul on the cylinder was questionable. I got a box of parts with the car, saw an after market coil that had been used so we tried it. Gonna out all new injectors, car had 160k on it. And new plugs and coils just to make aure aince those were done before i got the car.
