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1989 Chevrolet K1500 Cheyenne 5.7L Poor Fuel Economy, MIL Lamp on
I have a 1989 GMC 4x4 5.7L. The dreaded code 43 keeps coming back. Here,s all the parts I have tried, computer & prom, knock sensor,ESC module, map sensor. Checked all grounds & power supplies. Removed Cat Converter, still the same. The light will come on afte...
FIX posted 11/8/1999
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Message Closed w/FIX
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Related Documents & Media | VIN | 2GCDK14K8K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / T.B.I. |
| Symptoms | Poor Fuel Economy, MIL Lamp On |
| Occurs | Hot, Under Load, on Accel |
Trouble Codes
| 43 | ESC circuit |
Message Closed w/FIX
Vehicle Data
1989 Chevrolet K1500 Cheyenne
| VIN | 2GCDK14K8K |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / T.B.I. |
| Symptoms | Poor Fuel Economy, MIL Lamp On |
| Occurs | Hot, Under Load, on Accel |
Trouble Codes
| 43 | ESC circuit |
Video