Hi,
If it tries to start when you prime it, then it is a fuel-related issue. Have you checked the fuel pump pressure to make sure it is within the manufacturer's specifications? If not, that is where I would start.
Here is a link that explains how it's done:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Also, check to see if there are diagnostic trouble codes stored. This vehicle has an OBD1 system and doesn't require a scan tool to retrieve codes. All you will need is a short jumper wire or even a paper clip.
Here is a link that explains how it's done:
https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
Try these two things and let me know the results. Also, I attached the manufacturer's fuel pressure specifications below for you. You will need a fuel pressure gauge to do this, but if you don't have one, most parts stores will lend one to you.
Take care,
Joe
See pic below.
Aug 1, 2023 at 3:55 PM