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1998 GMC C1500 Sierra SL, N/A Infrared
Putting system in open loop. EGR is disabled in open loop but that isn't the only reason for high NOx values. The main reason for the high NOx appears to be a lean condition while in open loop.
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| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Not Applicable |
| Component | Other |
Vehicle Data
1998 GMC C1500 Sierra SL 5.0L
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed AutomaticTransmission (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | Not Applicable |
| Component | Other |
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