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1993 GMC G2500 Rally 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy
When Truck came in O2 was bias rich, exhaust was black. Changed O2 now O2 is switching but truck is surging, rich condition is gone. Van will idle, when it goes into closed loop it starts to surge. On the Scan tool, when the truck goes into closed loop the fue...
Summary posted 8/8/2003
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Related Documents & Media | VIN | 1GTFG25K3P |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | CA. OBDI |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy |
| Occurs | Always, Hot, Idle, Closed Loop |
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Vehicle Data
1993 GMC G2500 Rally
| VIN | 1GTFG25K3P |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | CA. OBDI |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy |
| Occurs | Always, Hot, Idle, Closed Loop |
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