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1988 GMC S15 Jimmy 2.8L Excessive Emissions
replaced ecm because injector pulse width was too high.
took tbi apart to check diaphram and o-rings. no exhaust
back pressure. parameter ok on ecm.
FIX posted 3/21/2001
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Related Documents & Media 
| VIN | 1GNCS18R4J |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBDI |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 45 | rich condition |
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Vehicle Data
1988 GMC S15 Jimmy
| VIN | 1GNCS18R4J |
| Engine | 2.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBDI |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 45 | rich condition |
Video