1991 Geo Tracker 1.6L Excessive Emissions
vehicle is running very rich,black exhaust smoke.o2 sensor always on rich side .960 volts even by creating manifold vacuum leak.i heared they have ecm problem but not sure if related to emmission problem.
FIX posted 10/27/2009
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Vehicle Data1991 Geo Tracker
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Vehicle Data
1991 Geo Tracker
VIN | 2CNBJ18U8M |
Engine | 1.6 L / 4 cyl / GAS |
Trans | 3-speed Automatic |
Delivery | FI / throttle body injection system |
Emissions | us federal |
Symptoms | Excessive Emissions |
Occurs | Always |