Fuel injector wire on one one side not spaying no pulse

1989 CHEVROLET TRUCK
250,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
CARL WAYNE BODEMULLER
  • MEMBER
  • 1 POST
Can't get power from wire to one side of my TBI on the truck listed above k 1500. switch plugs and still the same wire wont spray gas,both injectors work but no power to one wire. please help.
Apr 16, 2020 at 1:42 PM
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
ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good afternoon,

Which side does not have power?

I attached a diagram for you to show the power to the injectors.

Check for power to each injector with the key on.

The return wires to the ECM are grounded to fire the injectors.

Roy
Image (Click to enlarge)
Attached Media
Apr 16, 2020 at 2:21 PM
Advertisement