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1997 Buick Regal LS 3.8L Excessive Emissions
No vacuum leaks found. pcv and o-rings ok. o2 lazy, replaced, 02 went down and nox went up. egr position sensor actual was a little off so I replaced the egr and passages appear to be clear. This dropped nox from 710/697. When I add propane to front of maf eng...
FIX posted 11/5/2007
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Related Documents & Media | VIN | 2G4WB52K9T |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / FI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1997 Buick Regal LS
| VIN | 2G4WB52K9T |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / FI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Always |
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