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1990 GMC C1500 Sierra SLE 5.7L No Start
I have spark but no injector pusle. I probed the reference wire (purple) with the test light,and the injectors would not pulse. I checked the connections to the ECM for the reference wire and the injectors.I also checked powers and grounds.
FIX posted 1/14/2003
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Related Documents & Media | VIN | 1GTDC14K7L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | ECM Service #7747 |
Message Closed w/FIX
Vehicle Data
1990 GMC C1500 Sierra SLE
| VIN | 1GTDC14K7L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | ECM Service #7747 |
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