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check for spark when cranking
check red mode light goes out when cranking
no check engine light, does not mean there is no electrical fault
I swapped the alternator, and it had no effect. Car won't start.alternator, i had a similar but not quite same problem a lil bit ago when i was driving along and my whole dash went "offline" no speed, no revs, no temp, but the battery and abs light was on. turns out the alternator was overpowering the battery, and just as expected, the alternator brushes were gone. not 100% sure if this is the issue, but the battery light leads me to believe it could be that
Starter solenoid?I checked for spark today with an inline spark tester while cranking. No spark.
Battery and park brake light stay on when cranking. No other lights.
Bear in mind, I have new DFI, coils and leads. Last time when DFI/coils failed I was getting a check engine light.
I have changed fuel pump and fuel pressure regulator, and checked pressure - pretty sure pressure looks good.
I've checked all the fuses, all look good.
I've checked earthing from battery, looks good.
I have removed ABS plug - no difference.
I swapped alternator, no difference.
At this point I'm suspecting something computer level?
Two things I'm noticing -
1) when on reds, a soft buzzing/ringing noise coming from around alternator? Same on previous alternator. (Could be normal?).
2) In the past, when I disconnected then reconnected battery, I would hear something engage down low in the back right of the engine bay (when facing it). I am not hearing that noise anymore.
if you bridge 5 and 6 on the obd port do you get a 0012 code
if you do then i would be looking at the crank angle sensor