W208 clk200 rough idle when cold

Discussion in 'Engine' started by 666bxg, May 19, 2007.

  1. 666bxg

    666bxg Active Member

    Feb 7, 2004

    i recently had my ECU replaced with a used one after it blew. everything was going on fine until about 1 month after the ECU was fitted

    from cold starts i'm getting a rough idle, and occassionally would stall once D is selected. if left for a few mins everything will be fine. alternatively if i switched the engine off and on again, the problem is solved

    could anyone help point me in the right direction? MAF? O2 sensor?

    thanks in advance

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