Originally Posted by excellone
I have an ’88 325i automatic with a random engine issue when warm and moving. The check engine light comes on and engine will act like its trying to shut off. Sometimes it would not glitch for several days. However, today with warm/humid weather, the engine shut off. A mechanic looked at it and had it cut out at 6200 rpm consistently. I used a Bentley manual and had replaced these components that were not to spec.
Plugs (using Bosch copper)
Throttle position sensor
Fuel pump relay (original was warm and has carbon tracts on blades )
Vacuum is good
Diagnostic code indicates a break in FP relay. I will diagnose the fuel pump relay board to see if there is a voltage/loss when energized.
Has anyone experienced such an issue?
i did with my 318. Turns out the fuel pump was not working properly.