Page 1 of 1

VEMS no spark while cranking with low voltage

Posted: Wed Jul 12, 2017 10:44 pm
by chaloux
So Ross, the current owner of 4FOXSN8X, is having an issue where when he or the mechanic goes to start the car it won't start. He has some small parasitic draw that is lowering battery voltage past 12v and then he's getting no spark. Does VEMS stop sending spark after a certain voltage point? Can that be disabled?

Thanks dudes. I can't find anything online, or at least on my phone, that talks about this but I vaguely remember it being a thing.

Yes... I know a charger for ten minutes or a battery tender would "fix" the low voltage until the draw was found.

Re: VEMS no spark while cranking with low voltage

Posted: Wed Jul 12, 2017 11:36 pm
by ringbearer
I don't know but you are a great car seller, still helping years later :)

Re: VEMS no spark while cranking with low voltage

Posted: Thu Jul 13, 2017 6:08 pm
by chaloux
The answer is that NO this doesn't exist. Thumbs up.

Re: VEMS no spark while cranking with low voltage

Posted: Fri Jul 14, 2017 4:40 pm
by carl
Won't spark or losing trigger signal?

Re: VEMS no spark while cranking with low voltage

Posted: Fri Jul 21, 2017 8:10 am
by 88a5tq
Any chance you related the starter signal wire? I had this happen and it was the signal wire I ran that rubbed through on the axle and shorting out!