Hi everyone, I love that's there's a community for us to share information, very cool. This is my first post.

Here's the issue: I have a mb c230 2006 sport v6 nonturbo.

At stop, the idle jerks/jolts the car. It sputters when I accelerate and I have a loss of power. It's California and people get pissed off because I don't speed up quick enough lol. The problem started out as having a little bit of a sputter or rough idle (not too bad though) right after starting the car in the morning and then it would go away after 10-20 seconds.

Then one day on the highway one cylinder starts misfiring and the car starts shaking and acted like if u didn't keep the RPM's revving high enough it would stall. I pulled over and turned off the car and then restarted the car and the problem went away. The next day, I started the car in the morning and it did the same thing again, but this time it couldn't be correct by turning off and on the car.

I took it to the mechanic and he replaced all the spark plugs. The one that was misfiring, the spark plug gap was closed to nothing. The problem was gone for several days and then it came back again.

I cleaned the MAF body and blade. I cleaned the MAF sensor, none of it corrected the problem. And then I REPLACED the MAF sensor. I cleared the error codes and unplugged the battery to reset the computer. STILL the same problem.

Now my error codes are as follows: 0 codes, mil off, monitrs, 5 inc, catlyst, evap, sec air, 03 snsr, 02 htr, 3 ready, misfire, fuel, comp.

Old codes: p0300, p0303, p0303, p0173, p0170, p0300, p0303, p0305, mil on, monitrs, 0 inc, 8 ready, misfire, fuel, comp, catlyst, evap, sec air, 02 snsr, 02 htr

Soooo, sense the codes are different, I'm assuming something did change... Hellllllp!!!!

 

I forgot to tell you.... the spark plugs and the MAF sensor were bosch OEM parts...