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1994 Geo Prizm 1.6L Excessive Emissions, fails NOX
Posted to GM Driveability on 5/9/2007 12 Replies

The vehicle failed NOX . I have checked ignition timing, tps idle contact, timing belt indexing, crank gear, and the harmonic balancer keyway for wear. I replaced the catalytic converter. The o2 is working, stays between .4 and .5 volts and goes up and down wi...

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car Vehicle Data

1994 Geo Prizm

VIN 1Y1SK5362R
Engine1.6 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Fails NOx
OccursNot Applicable
Message Closed w/FIX

car Vehicle Data

1994 Geo Prizm

VIN 1Y1SK5362R
Engine1.6 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Fails NOx
OccursNot Applicable