I was driving home tonight in my 94 525ix touring and while sitting at a stop light, the engine died and would not re-start. No signs of any problems before hand, just running one second, then off.
Things I've checked:
Fusible link - Not broken and everything else electronic still works.
Intake boot - No cracks or tears
CPS - Measured 579 ohms. Looked a bit gunked up with dirt so I cleaned it. Gap to sensor wheel looks good.
DME Relay - Pulled it out, took the cover off and cleaned the contacts - Also tried junkyard relay
Fuel Pump Relay - Pulled it out, took the cover off and cleaned the contacts - Also tried junkyard relay
Visually inspected for vacuum leaks - Nothing obviously visible.
Engine ground - Dirty, but intact. Also, it wouldn't crank if bad, so that rules that out.
When I try and start the car it will almost catch with no throttle, but only occasionally. If I give it any throttle, it will only crank. When I pulled the intake boot, it was wet inside with fuel. The exhaust tips also had some fuel in them after trying to start it several times, so I obviously have fuel. I didn't check for spark yet, but I can't think of a reason why I would have fuel but no spark. Right now I am thinking vacuum leak. Going to build a smoke machine and see if a smoke test reveals anything.
Any other ideas?
EDIT: Checked for spark and I do have spark.
Things I've checked:
Fusible link - Not broken and everything else electronic still works.
Intake boot - No cracks or tears
CPS - Measured 579 ohms. Looked a bit gunked up with dirt so I cleaned it. Gap to sensor wheel looks good.
DME Relay - Pulled it out, took the cover off and cleaned the contacts - Also tried junkyard relay
Fuel Pump Relay - Pulled it out, took the cover off and cleaned the contacts - Also tried junkyard relay
Visually inspected for vacuum leaks - Nothing obviously visible.
Engine ground - Dirty, but intact. Also, it wouldn't crank if bad, so that rules that out.
When I try and start the car it will almost catch with no throttle, but only occasionally. If I give it any throttle, it will only crank. When I pulled the intake boot, it was wet inside with fuel. The exhaust tips also had some fuel in them after trying to start it several times, so I obviously have fuel. I didn't check for spark yet, but I can't think of a reason why I would have fuel but no spark. Right now I am thinking vacuum leak. Going to build a smoke machine and see if a smoke test reveals anything.
Any other ideas?
EDIT: Checked for spark and I do have spark.
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