No spark and injectors not spraying

Tiny
CRAZYWHEELZ
  • MEMBER
  • 1994 GMC C1500
  • V6
  • 2WD
  • AUTOMATIC
  • 165,400 MILES
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?
Saturday, February 18th, 2017 AT 9:17 AM

3 Replies

Tiny
JDL
  • 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.
Was this
answer
helpful?
Yes
No
+4
Saturday, February 18th, 2017 AT 10:33 AM
Tiny
CRAZYWHEELZ
  • MEMBER
  • 2 POSTS
Thanks, I will check that Monday and let you know the results.
Was this
answer
helpful?
Yes
No
+1
Saturday, February 18th, 2017 AT 10:45 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hope you get it going your way.
Was this
answer
helpful?
Yes
No
Saturday, February 18th, 2017 AT 11:05 AM

Please login or register to post a reply.

Related No Spark Content

Ignition Spark Check
GUIDE
Ignition Spark Check
An en­gine's ig­ni­tion sys­tem is re­spon­si­ble for ig­nit­ing the fuel-air mix­ture in­side the com­bus­tion cham­ber and when the ig­ni­tion process stops the en­gine will not run....
VIEW MORE