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1992 Chevrolet S10 Blazer 4.3L Excessive Emissions, Poor Idle Quality
With OTC scan tool hooked to battery, if negative disconnected, idle goes to and stays at about 1400 rpm. Connect it up again and idle returns to normal but readings still high. Manually checked all grounds at ECM and did not affect running. PCV is new but...
FIX posted 6/21/1999
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Related Documents & Media 
| VIN | 1GNDT13W1N |
| Engine | 4.3 L / 6 cyl |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | On Accel, Idle |
| Misc. | Eng Code W, 4 Door |
Message Closed w/FIX
Vehicle Data
1992 Chevrolet S10 Blazer
| VIN | 1GNDT13W1N |
| Engine | 4.3 L / 6 cyl |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality |
| Occurs | On Accel, Idle |
| Misc. | Eng Code W, 4 Door |
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