Servus dear community, slowly I am a little desperate… 99ers s80 B6304s3 with the gm automatic transmission, was read today by the dealer of my trust error memory because abgacontroluchte illuminated and emission maintenance seemed urgent. quite at the same time an unround run with ~500rpm in stand and temporarily dying engine in stand, almost no gas acceptance and driving feeling of a tractor. well, error memory read out: – both lambdasonden vo, – misignition cylinder 4 active + not active – misignition cylinder 5 active + not active – misignition cylinder 6 active + not activehttp://data.motor-talk.de/…/20130211-223543-8702026483902873616.jpg mechanic meant yes the unround run comes from the cylinders 4, 5, 6 as ignition coil def. Nothing easier than the, ignition coils replaced, everything assembled, result: nothing! no change. one ignition coil pulled out after the other, all ignition plugs switched, also no change. langs at I am really perplexed, because just because of the lambda probes the error codes should not come and the motor does not spin. oil there, sprite there, nerves away :/ hope for one or other helpful tip best greetings from wien