missfiring at 4000 rpm and above

[davvid]

My 98 E280 is missfiring above 4000rpm,although ok below that,I've just had to replace the crankshaft sensor,although the missfire was there before that,anyone any ideas?

[mercedes tech]

davvid said:

My 98 E280 is missfiring above 4000rpm,although ok below that,I've just had to replace the crankshaft sensor,although the missfire was there before that,anyone any ideas?

Air mass sensor