E34 M20 Engine Problems overview

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At the time this was recorded, i didnt know what was wrong. But i found out.. its a broken rocker arm for the intake valve on cylinder ...

idles alright then rpms jusp around when revved up. i removed MAF and cleaned it. also checked for vaccum leaks.

DME replaced - it finally help to at least start it No power to fuelpump - jumped relay New sparkplug wires and coil any ideas?

UPDATE : it turned out to be the Air flow meter ... removed the old one and placed another one (used) .. mileage also improved !

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