
1991 Buick Park Avenue 3.8L Excessive Emissions
Ran about 6 pre-test on the machine and results all the same except NoX on first run which was 1800 PPM. Fixed small air leak and replaced ECT after test showed it was out of specs and NoX was reduced to 870 PPM. Also notice rust in coolant passage after ECT w...
FIX posted 7/30/2010
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VIN | 1G4CU53L5M |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD 1, Ca Emission |
Symptoms | Excessive Emissions |
Occurs | Always |
Message Closed
Vehicle Data
1991 Buick Park Avenue
VIN | 1G4CU53L5M |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD 1, Ca Emission |
Symptoms | Excessive Emissions |
Occurs | Always |