dirty30 Posted June 2, 2015 Report Share Posted June 2, 2015 So I have e30 325is and recently when I start her up on a half tank or less the revs drop to under 1 and the car sputters and dies, but when I have a full tank she starts right up, the revs are normal and does not die and acts totally normal. I was thinking it could be a possible fuel pump issue but Im not too sure. Anyone have any idea of whats the issue? Thanks! Quote Link to comment Share on other sites More sharing options...
B C Posted June 3, 2015 Report Share Posted June 3, 2015 From what you have laid out, the simplest explanation points to a fuel pressure issue. If you want to start throwing parts at it, then a fuel filter may not be a bad maintenance item to do. Checking fuel pressure with a gauge would be a proper first start though. Quote Link to comment Share on other sites More sharing options...
mkoepp Posted June 5, 2015 Report Share Posted June 5, 2015 On E28's there is an in tank transfer pump. If that fails they tend no not run or run like crap if the tank get lower than 1/4. Quote Link to comment Share on other sites More sharing options...
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