No spark and injectors not spraying

1994 GMC C1500
165,400 MILES • V6 • 2WD • AUTOMATIC
Avatar
CRAZYWHEELZ
  • MEMBER
  • 2 POSTS
Truck was running all of the sudden stop and not start again check fuel pump and it works. check ignition coil and have no spark. also, injectors are not staying check all the fuses and relays they all good check connections and they all good. do you guys think it may be the ECM?
Feb 18, 2017 at 1:17 AM
Advertisement
Avatar
JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
My thought is either the ignition module or pickup coil has a problem. With bypass ignition, the ignition module controls spark during cranking, but, the ignition module has to have signal from pickup coil in distributor. If the computer does not see rpm signal, no fuel injector pulse.
Feb 18, 2017 at 2:33 AM
Avatar
CRAZYWHEELZ
  • MEMBER
  • 2 POSTS
Thanks, I will check that Monday and let you know the results.
Feb 18, 2017 at 2:45 AM
Avatar
JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Hope you get it going your way.
Feb 18, 2017 at 3:05 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle