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1995 Chevrolet c3500 7.4L Poor Idle Quality, soot
here it is three weeks later and truck is running fine except at idle it will load up and soot(raw gas) will come from the pipes so bad you can hardly see them. all parameters are fine. fuel trim 128 lt trim 118 trim cell 18 will go to closed loop within 2...
FIX posted 5/6/1999
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Message Closed w/FIX
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| VIN | 1GCHC39N5S |
| Engine | 7.4 L / 8 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Soot |
| Occurs | Idle |
| Misc. | Dually |
Message Closed w/FIX
Vehicle Data
1995 Chevrolet c3500
| VIN | 1GCHC39N5S |
| Engine | 7.4 L / 8 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | Poor Idle Quality, Soot |
| Occurs | Idle |
| Misc. | Dually |
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