MY CAR RUNS PURFECTLY FINE WHEN ITS COLD

1999 Mercedes Benz 420sl

Tiny

Anonymous

March, 17, 2013 AT 1:56 AM

My car runs purfectly fine when its cold. After it gets hot under very mild acceleration its fine but anything more ut bucks and kicks and skipps. Under full throttle it will go alright but you can feel the surging if the power as it goes through the power band. Ive gotten one code it was an ignition malfunction or missfire which mercedes told me was a knock sensor code. It only happened once with a code otherwise it seems untracable. All coils and plugs have been replaced as well as the fuel pressure regulator and the maf. Also an oxygen sensor. Im running out of ideas help?

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