box986

Vadim, did you have the same problem on your car?

First incident was the fuel pump,, dealer replace the whole tank.

ESP warning light came on and the got into limp mode. Dealer said loose electrical connection somewhere. Brought the car back the second day cuz the car is in limp mode on the way home.

This time the dealer replaced the throttle actuator (they did it last year also) eventhough no fault code ws found. It last about 400 miles this time and the car is in limp mode again today.

Symtoms: rough idle and rpm bounces around 1500 rpm.

Car felt like it has a diesel engine.

I am suspecting the ESP modual or the engine management computer. Any take on this one?

ronnie0738

Check the throttle connection. Disconnect it, reconnect, and make sure it is very tight. Mine was loose and I got the same problem.

box986

Thanks for the tip,, will try that tonight.

I have the same engine mods as you plus resonator removal and secondary cat removal.

Childish///AMG

I "Hope" that all will become well.

box986

That did not do the trick, the harnesses are plug all the way in on both ends


I know C32s are drive by wire (whatever its called) and where does the throttle actuator get its signal from?

Does it come directly from the ECU?

Maybe I have a fault in the ECU that causes the throttle actuator to act crazy.

ronnie0738

hmm, does that cable connected to your tb have an extention cable attached or is it straight from the source down below?

box986

It does have an extention cable on it after they replace the tb the first time.

I didnt recall seeing the extention cable there before, my car is a 2002.

rrf

I recall Vadim had the same exact problem, (extension cable and all). That was about 1 year ago at least. Try a search, good luck.

ronnie0738

I removed the extention cable and tightened the original cable. That solved my problem.

box986

Are you saying you removed the extention cable all together and hook it up the way it was from the factory?

ronnie0738

Yes, I removed the extention cable completely and everything returned to normal.

monacruzzz

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