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Re: 535 running very poorly PLEASE HELP (archive)
[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]
Posted by Andrej Gaspari on September 24, 2000 at 14:44:35:

In Reply to: 535 running very poorly PLEASE HELP posted by Sari on September 24, 2000 at 13:48:26:

Try replacing the fuel pump and main relays. You can just swap the FP unit with any other 4-prong standard relay, but the the main relay is the only 5-prong in the car. If that's not it, you'll have to give more details (check fuel, spark, sensors, plugs, etc.) for a clearer diagnosis.


I was driving on the freeway at 75 and all of a sudden the car starts to loose a great deal of power. Then it comes back. This problem has been getting progressivally worse until one night it was stalling over and over again. Finally it was running (barely) and I took it home. Next morning I took it to a Bosch specialist and the car was running good again. So I figured maybe bad gas or water in the line. I fill with 93 octane and some water remover and it went away for about a day and a half. Last night the problem came back and is getting worse. I'm tired of driving by the shoulder worried that the car can stall at any moment and have to tow it. PLEASE HELP. PS fuel pressure regulator was replaces last Oct.

THANK YOU
Sari
86 535i




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