cyclinder 1 2 3 misfire on 02 c240
09-13-2009, 03:14 PM
#1
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2002 E320
cyclinder 1 2 3 misfire on 02 c240
ok guys... my buddy was driving his 02 c240 and all of the sudden it lost power and semmed to be riding on half the amount of cylinders and the check engine light came on and started flashing. we checked the codes and it threw 8 codes initially. it was P0300, P0301, P0302, P0303 and it repeated for tha last four codes. i had changed the wires and all 12 plugs (i also swapped all coils from cyls 1-3 to 4-6) and cleared the codes. There was no change except the codes went from 8 to 4 codes (still the same). The car still sounds and feels like its running on 3 cyls and if i press the accelerator, it will go close to 3k rpm and begin to drop as if its dying (this is with my foot stillon the pedal). i then cleared the code and disconnected the MAF, put the key in and started the car... it still sounded and felt like sh.. but when i accelerate it will go beyond 3k rpm. any ideas? i could really use them.
09-13-2009, 08:25 PM
#2
Super Moderator
You are on the wrong forum - Repost on the W203 forum. Did the codes move to 304, 305 & 306 after you swapped the coilpacks? If not you could have a vacuum hose off on one bank. Please plug in MAF - cancel codes & drive again. Check for fuel trim codes after doing this. You could have a collapsed Cat on one exhaust. Any strange exhaust noises? Get this on the correct forum & we will help you to sort it out. Has the car ever had a new CPS?
