I thought I had seen it all... but NO! Please read details below and let me know what you think. Did I overlook something?
'84 325e
I have an issue where randomly my car won't start. This happens about 4 to 5 times a month... this is my daily driver. I've been mechanically restoring this car for months, this issues still persists and it's very random. Warm start, cold start, sitting for a couple days, sitting for 10 minutes, full tank, nearly empty... happens whenever.
When the issue happens the car cranks normally, fuel pumps spin up, but it does not start. I don't know if it's spark, injector firing, or both. The reason I don't know is because it's random and if I repeatedly turn the car off then try again it usually starts after a dozen or so tries. When the car starts it runs great and gets great mileage.
This is why I think it is the ignition switch. That and almost everything else has been replaced within the last 6 months:
fuel pumps
plugs
crank sensors
fpr
icv
main and fuel relays
fuel filter
AFM
ECU
'84 325e
I have an issue where randomly my car won't start. This happens about 4 to 5 times a month... this is my daily driver. I've been mechanically restoring this car for months, this issues still persists and it's very random. Warm start, cold start, sitting for a couple days, sitting for 10 minutes, full tank, nearly empty... happens whenever.
When the issue happens the car cranks normally, fuel pumps spin up, but it does not start. I don't know if it's spark, injector firing, or both. The reason I don't know is because it's random and if I repeatedly turn the car off then try again it usually starts after a dozen or so tries. When the car starts it runs great and gets great mileage.
This is why I think it is the ignition switch. That and almost everything else has been replaced within the last 6 months:
fuel pumps
plugs
crank sensors
fpr
icv
main and fuel relays
fuel filter
AFM
ECU
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