Fuel injector wire on one one side not spaying no pulse

1989 CHEVROLET TRUCK
250,000 MILES • V8 • 4WD • AUTOMATIC
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CARL WAYNE BODEMULLER
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  • 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
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 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
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Apr 16, 2020 at 2:21 PM