Hi, I've been slogging through fixing my E30 318iC that won't start for nearly 4 months now, long story short it seems like it fires for a few revolutions when i start it, but then dies, and if I try to start it again it just cranks with no fire.
I've checked:
Spark plugs/ignition wires, all are sparking.
Fuel pump, 40PSI at the rail, fuel lines aren't switched.
Checked for vacuum leaks
Ordered new ICV, tested to work, 10ohms resistance getting 12v from battery
Checked Timing (correct, though I'm getting paranoid and feel like i need to check it again)
So I've been checking the wiring lately to see if maybe there's a short or break in one of the wires that grounds to the ECU, and I found that there's about .85 volts coming BACKWARDS from the ABS Hydraulic Unit into splice 122, as pictured in this diagram:
The .85 volts is only present when the ignition is in Position 2 (Run), so I was only able to see it with the main relay disabled.
This ISN'T normal, is it? Could this be interfering with my other injection electrics or messing with the ECU signals to cause a no-start?
Topic: Voltage Issue causing no-start? (Read 1839 times)