TBI injector connection?

MATTPENA23

MEMBER
1995 CHEVROLET 3500
5.7L
V8
2WD
AUTOMATIC
141,000 MILES

I have only 1 injector squirting when engine runs. Both injectors work as I swapped the connectors, and the problem persists with the one connector. With engine off and key on, I am only receiving 7v from the non-working working connection.

Thursday, May 11th, 2023 AT 9:00 AM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,256 POSTS

I would check the wiring condition and the fuses and if they are okay replace the PCM. Here is a guide to help and I have included the engine wiring diagrams so you can see how the system works and which wires to test.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

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TBI injector connection?

1 Reply

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