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1990 Chevrolet K1500 Cheyenne 4.3L MIL Lamp on
this one has me stumped checked knock sens. reads 100ohm. new sens reads 100 ohms. ck wiring to esc module and from esc to ecm no problem found. also tried new esc module and ecm. dvom reads min max 100ohm to 105ohm connected to sensor and ground while tapping...
FIX posted 10/30/1998
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1GCDK14Z2L |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / throttle body efi |
| Emissions | fed |
| Symptoms | MIL Lamp On |
| Occurs | Hot, Same Amt of Miles Everytime |
| Misc. | Short Bed 4X4 |
Trouble Codes
| 43 | est code knock sensor circuit |
Message Closed w/FIX
Vehicle Data
1990 Chevrolet K1500 Cheyenne
| VIN | 1GCDK14Z2L |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / throttle body efi |
| Emissions | fed |
| Symptoms | MIL Lamp On |
| Occurs | Hot, Same Amt of Miles Everytime |
| Misc. | Short Bed 4X4 |
Trouble Codes
| 43 | est code knock sensor circuit |
Video