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 9:17 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 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 10:33 AM
Advertisement
Avatar
CRAZYWHEELZ
  • MEMBER
  • 2 POSTS
Thanks, I will check that Monday and let you know the results.
Feb 18, 2017 at 10:45 AM
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Hope you get it going your way.
Feb 18, 2017 at 11:05 AM