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1990 Chevrolet Lumina APV 3.1L Poor Idle Quality, Hesitation, Surge
Started running rough, low power, found one injector not firing,tested with noid light, concluded defective injector. Replace both injectors, gaskets and pressure regulator. No change. Checked for codes, fuel pressure and misc tests. Concluded defective ecm. R... Summary posted 5/19/2012 12 Replies Received (View Replies)12 Replies Received (Hide Replies)
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12 Replies Received
12 Replies Received
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Vehicle Data| VIN | 1GNCU06D3L |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | Fuel Injection / TBI |
| Emissions | CA |
| Symptoms | Poor Idle Quality, Hesitation, Surge |
| Occurs | Always, On Accel, Idle |
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