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1991 Dodge B250 5.2L Excessive Emissions, Poor Fuel Economy
Engine seems to run great, customer complains of taper in fuel economy, and black smoke present apon hard aceleration. O2 sensor goes lean at idle, then picks up and fluctuates at 1600 rpm, but when you drive the van down the road for about 5 min., the o2 ...
FIX posted 9/28/1999
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| VIN | [No VIN Available] |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US Fed |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Under Load |
| Misc. | Van |
Trouble Codes
| 51 | O2 Sensor Lean below center |
Message Closed w/FIX
Vehicle Data
1991 Dodge B250
| VIN | [No VIN Available] |
| Engine | 5.2 L / 8 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / EFI |
| Emissions | US Fed |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Under Load |
| Misc. | Van |
Trouble Codes
| 51 | O2 Sensor Lean below center |
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