Hey guys,
I'm tired after having a bad day, compounded by a recalcitrant car that left me stranded, but I wanted to throw this out there so I can get some feedback and won't be stranded any longer than I have to.
Long story short:
-Hot day. E36 edition M42. Ran normally until today.
-Refuelled car. When I tried to (warm) start it, it fired and would only briefly maintain a lumpy/misfirey low idle, before petering out and dieing. Giving it throttle would not rev the engine, and only caused it to die more quickly. It has on rare occasion done the low idle thing before, but a subsequent restart would work and it would return to normal running. This time, it became a persistent condition.
-Unplugged ICV to see if forcing it into limp mode would make a difference. No difference.
-Same with AFM. No difference.
-Removed back seat cushion and in the Olde English tradition, gave the top of the fuel pump/sender a few knocks with the handle of a screwdriver. Didn't help.
-Got it flatbedded home. After recharging the battery, tried a quick retest, and now find that it cranks, but won't fire at all. When the ignition key is turned to the run position, I can't hear the usual "thump" from the fuel pump priming like I usually do, even with the seat and pump portal cover removed. Doesn't make a peep.
That leads me to think the pump finally gave up the ghost, or perhaps the fuse or relay is dead, but I was too tired to check them in the darkness. Will check them, as well as for voltage at the plug when daylight returns.
The pump is original, so it's new well into its teenage years and over 100k miles.
I'm leaning toward ordering a new pump, but wanted to see if anything else is worth considering.
Danke.
Topic: Fuel pump kaput? (Read 3699 times)