No start

D

denny

Active member
It’s not getting spark from the coil and no fuel fromthe injectors, fuel pressure is good at the rail.

I am running BS3 which adds another variable.


So far, I only changed the coil. Took out the eginition module lastnigh probably change that today, it looks bad.


Question, would a bad ignition system cause the injectors not to fire?

Because of the no fuel and no spark , I am thinking its maybe the ecu.
 
Last edited:
Sportmachines

Sportmachines

Active member
Re: No start

Bad ignition should affect the injectors. The signals for both to fire comes from the ecm. So I would lean towards that. And I know is elementary, but is the injector harness pluged in? HTH
 
D

denny

Active member
Re: No start

The truck have been running on BS3 for a few years now, it drove fine up to a week ago.

I will probably change the iginition module and see if I can figure out how to test the 12v coming from the ecu to the distriibutor.

After that I will swap back to the stock ecu and see if the BS3 is the problem.
 
qbnkiller

qbnkiller

Conflaguration Specialist
Re: No start

Go into the I/O STATUS screen. See if when you KEY ON the Fuel Pump output lights up. Also, try throwing an old tune in it and see if that helps (trust me on that one!!).
 
D

denny

Active member
Re: No start

thanks, I will try loading a different cal after after I place back the iginition module.
 
D

denny

Active member
Re: No start

qbnkiller said:
Go into the I/O STATUS screen. See if when you KEY ON the Fuel Pump output lights up. Also, try throwing an old tune in it and see if that helps (trust me on that one!!).
Click to expand...

KEY ON the fuel pump light up for a few seconds, normal.
cranking no fuel at the injectors and no spark at the plugs.
BS3 is acting weird, the values are sometime all 0.00 when I try to load a new call it loses connection.
I changed the coil and ignition module, I think there is a problem with the BS3.


I send two email to BS3 and left them a message, they aint replying or calling me back.

Tomorrow I am swaping back the the 50lb chip stock ecu.

Everytime when something breaks ,I am feeling like to sell off all the crap I have for it in the bastment (I have atr headders, new bowtie block, steel crank etc).
 
qbnkiller

qbnkiller

Conflaguration Specialist
Re: No start - BS3

Re: No start - BS3

Getting ahold of either Meaney (John or Leo) is tough. If you want to send me a tune (or I send you a tune), LMK through PM and I'd be glad to help. I can test it out in my truck and see if it starts.

Be good...
 
D

denny

Active member
Re: No start - BS3

Re: No start - BS3

qbnkiller said:
Getting ahold of either Meaney (John or Leo) is tough. If you want to send me a tune (or I send you a tune), LMK through PM and I'd be glad to help. I can test it out in my truck and see if it starts.

Be good...
Click to expand...

ok thank, I will pm you,
 
D

denny

Active member
Re: No start

Found it, it was a bad pickup coil .

found this http://www.syty.net/forums/showthread.php?t=64809 and did an ohm test on the pickup coil and it was dead.

I had an old distributor, drop it in and it start right up. Will buy a new pickup and rebuild the dis tomorrow, then put back all the shit I took off (bs3, msd, injectors..). :D
 
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