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1988 Chevrolet K1500 Cheyenne 5.7L Excessive Emissions, Poor Idle Quality, Hesitation
GM. techs i could use some help. Have this truck that runs rich at idle. The 02 reads fixed at 900mv. block learn and integrator fixed at 128. Scanner reads open loop at idle. the minute you just breath the idle it goes into closed loop and controls. We have t...
FIX posted 12/6/2002
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Message Closed w/FIX
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19 Replies Received
19 Replies Received
Related Documents & Media | VIN | 1GCDK14K4J |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / TBI |
| Emissions | Fed. |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation |
| Occurs | Hot, Idle |
Trouble Codes
| 45 | rich mixture |
Message Closed w/FIX
Vehicle Data
1988 Chevrolet K1500 Cheyenne
| VIN | 1GCDK14K4J |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / TBI |
| Emissions | Fed. |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation |
| Occurs | Hot, Idle |
Trouble Codes
| 45 | rich mixture |
Video