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Missfire 1991 E34 520i M50

2K views 5 replies 3 participants last post by  rbooth 
#1 ·
Hello i have put this on another post of mine but i thought it would be better on its own.

when i push the throttle down pretty hard and fast it misses and backfires like it is running on 5 or something then when it gets to 3k rpm it is ok
Also if i slowly press the accelerator about 30% of the way down it is ok and does not miss or backfire

i have changed the plugs, o2 sensor, new fuel filter and had code reader on it and nothing on the code reader except 0000

anyone got any ideas
 
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