'98 Clk230k engine troubles....

[watson101]

So I started off by getting the leads and software to try diagnose the car, after reading up a load of threads I had an idea what to expect....

Codes I got back were p0300, p0300, p0302, p0302, p0303, p0303. Is it usual that the codes are repeated? I googles the codes and the p0300 is random/multiple cylinder missfires and the 2 and 3 on the end indicates the cylinders but I feel there may be other reasons for the triggering such as fuel or the mix or something similar, any ideas anyone? Or shall I proceed to get new plugs and work my way through?

 

[BlackC55]

You need some live data to get more of an idea of the cause. Codes are not all the info. Before replacing anything, get it diagnosed properly.

 

[watson101]

I got some new spark plugs in her and she's running like a dream ( for now ) but I get the feeling that was prob done before I bought her, I think a full service and possibly a remap might be the way forward next

 

[Alban]

actually, the P0300 means Random/Multiple Cylinder Misfire Detected, the P0302 means Cylinder 2 Misfire Detected, the P0303 means Cylinder 3 Misfire Detected.