DirtE30 - 1990 BMW 325i

[Senor_Taylor]

So, I went out to the garage, unplugged the MAF, plugged it back in, then wiggled the box that has the starting relays, and the car fired right up on the first time. Put gas in it and took it for a drive. It drove objectively better than it ever has. The CEL went out when it warmed up and it pulled strong and hard.

Then I decided to drive it on Sunday. CEL came on solid and the idle would hang wherever you revved it to indefinitely, so shifting was a pain. I got some funny looks at stoplights with my car pegged at 5 grand. I pulled over near Leesburg and checked the fuel line going to the fuel rail to find it soaking wet with gas. I flew home and left it in the garage.

A theory is the fuel leak is also pulling air into the fuel rail and it's somehow injected air and fuel and leading to this "runaway" scenario I'm facing now where it revs really high without opening the throttle. I'm going to replace that line and get a proper clamp on it and see where that gets me. Other than that, I'm fairly tired of working on cars more than driving them.