Will not start

Hi,

First, the injectors are powered via the injector fuse in the fuse box. I need you to confirm the fuse is good and there is power to and from it. Here is a link you may find helpful:

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

Next, if the fuse checks good, with the key on, check for power at the red wire and the white wire at the injectors.

If the fuse is good and has power and there is no power to the injector wires I mentioned, check for wire damage between the two. I don't know where the vehicle was parked, but if it was outside, mice love to chew on wiring.

If there is power to the injectors, then check if there is a ground pulse at the dark green wire and the dark blue wires at the injectors. If there is no ground pulse, disconnect the ECM under the right side of the dash and check for corrosion that would prevent a ground.

If everything checks good, check for diagnostic trouble codes. All you need to do is a short jumper wire or even a paper clip. Here is a link that shows how it's done.

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Let me know what you find or if you have questions.

Take care,

Joe

See pics below. Pics 1 and 2 are the wiring schematic for the injectors.

Hi,

I'm glad to know you got it fixed and thanks for the update.

I was always taught if the voltage drops below 9.6v when cranking, it will likely cause a no-start condition. In this case, which may have been the entire problem.

Regardless, please feel free to come back anytime in the future. You are always welcome here.

Take care,

Joe

You are very welcome. I hope we see you again if you need help.

Take good care of yourself.

Joe