why is my m50 turbo engine idle so choppy, the rpms go up and down and so does the...

E

Eric

New member
...boost/ vacuum ? when i start my 1986 e30 with a m50 turbo engine the idle is very bad it goes up and down so does the boost/vacuum and the fuel air ratio is going everywhere, this just started happening never did before also now the mpg gauge on the gauge cluster works and just goes crazy need help. could it be a vacuum leak? Any other ideas
 
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