Crank no start?

Hi,

That makes sense. If you have fuel pressure and you have spark, then it is likely the injectors are not getting power or there is no ground path for them.

Each injector will have a pink wire to it. See pic 2. With the key on, each injector should have 12v at the pink wires. Confirm that. If there is no power, check fuses 55 and 56 in the under-hood fuse box. See pic 1 below.

Also, note there are two splices that may need to be checked. I circled them in pic 2.

If they do have power, here is what I need you to do. Disconnect one at a time. In addition to the pink B+ wire will be one that is a different color at each injector.

Take a test light and clamp the alligator clip of the light to the battery positive. Probe the different color wire at the injector connector and have someone crank the engine. The test light should flash on and off. If that happens, that indicates the PCM is providing a ground path to the injector. At that point, I would remove the injectors and inspect them for operation.

If the light doesn't flash, the PCM or connector/wiring to the PCM is suspect.

Let me know what you find.

Take care,

Joe

See pics below.

Hi,

If you have fuel and spark, it should run. Since it started when primed with fuel, that tells me the fuel isn't getting into the engine via the injectors. Have you removed the fuel injectors to see if they are working?

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Let me know.

Joe

Sounds like a plan. If you have a chance, let me know how things turn out for you. I'm interested in knowing.

Take care,

Joe

Hi,

If your meter indicates 11. Ohms of resistance when you touch the leads together, something is off. It should be 0. There shouldn't be any resistance if they are touched together. So, I'm not sure what is happening.

Let me know. Can you get your hands on a different one just to recheck?

Joe

Hi,

Yes, they are the same injectors for the same GM vehicle. See part interchange below. GM used the Delphi part but gave it a GM part number. That is what you have.

Take a look and let me know if that helps.

Take care,

joe

See pic below.

Hi,

They shouldn't require anything different. They are to be a direct fit. Could you take a few pics of what you are seeing as far s the wiring and upload it for me to see?

Joe

Hi,

I'm not sure why the wiring would be different. I looked up both brands and the connectors and pins look the same on each one.

Are you planning to replace all of them? If that is the case, just go with whichever brand you use.

Let me know.

Joe

Hi,

Okay, but I'm still not sure why they would be different. Anything is possible, but it doesn't make sense.

Do you see anything different in pics?

Joe

Hi,

We are getting the same storm starting tomorrow. Ugh! I miss summer. If possible, let me know how things turn out for you. I'm interested in knowing.

Take care and I wish you and your family a Great Christmas.

Joe

Hi,

Thank you for the update and I'm glad to know it's fixed. LOL That is always a good thing.

I hope you enjoyed Christmas. I was lucky enough to lose heat Friday morning when the storm started and temperatures dropped, and not get it back until Monday at 10 AM. Ugh!

Regardless, take care and feel free to come back anytime in the future.

Joe