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1990 GMC V1500 Suburban 5.7L Excessive Emissions
hi fellow technitians. vehicle came to the shop with failed emissions test from de state deq station. failed for high nox. we checked egr system operation and scoped ignition system. replace o2 sensor, egr valve, coolant temp sensor,egr control selenoid. vehic...
Summary posted 12/26/2001
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Related Documents & Media | VIN | 1GKEV16K8L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | Excessive Emissions |
| Occurs | Cruise |
Trouble Codes
| 42 | electronic spark timing problem |
| 44 | lean exhaust |
Message Closed w/Summary
Vehicle Data
1990 GMC V1500 Suburban
| VIN | 1GKEV16K8L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | Excessive Emissions |
| Occurs | Cruise |
Trouble Codes
| 42 | electronic spark timing problem |
| 44 | lean exhaust |
Video