Hello, I have an 86 325e and when I hooked up my fuel pressure tester (new snap on so im fairly sure it's accurate) it read 36 psi when cranking, and 30psi at idle. Unhooked vacuum line to FPR, and it went up to 36psi. Hooked the line back up and it went back down to 30psi. When I turned it off, it held the pressure for longer than 20 mins. I jumped the fuel pump relay with a random jumper wire, and it went up to 40 psi. After I removed the wire it held at 36psi until I started the car back up, and it went back down to 30. I swapped different relays and even replaced both relays for the pump. Same results every time. When holding it at 3000rpm it jumped to 32-33, then came back to 30 immediately. I've replaced most fuel hoses and the filter. Any ideas? Thank you,
Josh
Josh
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