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E34 (1989 - 1995)

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Old 12-16-2009, 06:20 PM
cranedoc cranedoc is offline
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Location: chesapeake va
Join Date: Dec 2009
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Mein Auto: 1995 525i
Smile new member /fuel pump question

Hi guys iam new to this forum and need to know what wires to check on the fuel pump harness where ti plugs into the fuel pump harness.The car is a 1995 525i ,i think the fuel pup is bad but want to check the electrical supply to the pump.Any help is greatly appreciated.
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Old 12-16-2009, 06:45 PM
BMR_LVR's Avatar
BMR_LVR BMR_LVR is online now
Humble E34 lover
Location: Asheboro, NC
Join Date: Dec 2008
Posts: 5,469
Mein Auto: 1992 525i
Maybe this will help.

Also search for "fuel pump relay" and you will find ways to check it easily. Hopefully that is the problem because a relay costs $15-$20 at the dealer

I had the relay go bad on my E36 and confirmed that I had spark by squirting a small amount of starter fluid in my airbox. When it fired and ran for a second or two, I knew that I had a fuel delivery problem. Once you confirm that, checking the fuel pump and relay aren't that hard.
Most problems are usually something simple !

Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.

Calypso Red 1992 525i with 225K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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