Replaced plugs wires, ICM, cap, rotor, cool and fuel pump. no start.
Aug 3, 2022 at 1:34 PM
Got spark and fuel, no start?
1989 GMC C1500
POOT67
- MEMBER
- 1 POST
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Hi,
If you have spark and fuel, it should run unless compression is too low or there is a timing issue. Also, if the injector isn't getting power, it won't get fuel even if the pump is working.
Do me a favor. See if it starts for a second or two when you use starting fluid. If it does and then stalls, we know its fuel related.
Also, I need you to scan for diagnostic trouble codes. This has an obd1 system that doesn't require a scan tool. All that is needed is a short jumper wire or even a paper clip. Follow the directions in this link and let me know the results:
https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
Let me know.
Joe
If you have spark and fuel, it should run unless compression is too low or there is a timing issue. Also, if the injector isn't getting power, it won't get fuel even if the pump is working.
Do me a favor. See if it starts for a second or two when you use starting fluid. If it does and then stalls, we know its fuel related.
Also, I need you to scan for diagnostic trouble codes. This has an obd1 system that doesn't require a scan tool. All that is needed is a short jumper wire or even a paper clip. Follow the directions in this link and let me know the results:
https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
Let me know.
Joe
Aug 3, 2022 at 2:57 PM
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