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1989 GMC C1500 Sierra SLE 5.7L MIL Lamp on, Minor Surge,
Gentlemen, This GMC loses it's O2 voltage at cruise or just off idle. O2 volts will slowly go to zero and BLM will go to 170+ in less than 1 min at cruise or holding throttle off idle while standing. O2 readings are normal at idle or while 'gooseing' the t...
FIX posted 12/2/1999
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| VIN | 2GTEC19KXK |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | Federal-without A.I.R. pump |
| Symptoms | MIL Lamp on, Minor Surge, |
| Occurs | Cruise, Closed Loop(ect 176+) |
| Misc. | Overpriced Conversion Truck |
Trouble Codes
| 44 | Lean Exhaust |
Message Closed w/FIX
Vehicle Data
1989 GMC C1500 Sierra SLE
| VIN | 2GTEC19KXK |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | Federal-without A.I.R. pump |
| Symptoms | MIL Lamp on, Minor Surge, |
| Occurs | Cruise, Closed Loop(ect 176+) |
| Misc. | Overpriced Conversion Truck |
Trouble Codes
| 44 | Lean Exhaust |
Video