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1987 Chevrolet R30 Scottsdale 7.4L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy
Thanks guys & girls for your time and effort. Replace the engine and started to disconnect the wire to set the timing and could not find the disconnect. Mitchell says it is by the distributor, but i have look all over. I set the timing close enough to crank an...
FIX posted 1/24/2001
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| VIN | 1GBHR34N5H |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / TBI |
| Emissions | US FED EMMISIONS |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy |
| Occurs | Always |
| Misc. | New Motor |
Trouble Codes
| 33 | Map signal |
| 42 | testing and results |
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Vehicle Data
1987 Chevrolet R30 Scottsdale
| VIN | 1GBHR34N5H |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / TBI |
| Emissions | US FED EMMISIONS |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy |
| Occurs | Always |
| Misc. | New Motor |
Trouble Codes
| 33 | Map signal |
| 42 | testing and results |
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