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1995 Chevrolet K2500 Suburban 7.4L Excessive Emissions
Posted to GM Driveability on 3/14/2011 5 Replies

Truck is failing for nox, customer replaced cat and o2.

Found ecm only pulling pwm ground to 6 or 7 volts at cruise and full throttle, dont know if this enough or [...] grounded the ecm wire and truck still idles, pulled off the egr and started vehicle, have...

5 Replies Received (View Replies)

  Related Documents & Media  1995 Chevrolet K2500 Suburban

 
Message Closed w/FIX

car Vehicle Data

1995 Chevrolet K2500 Suburban

VIN 1GNGK26N7S
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
OccursAlways
Message Closed w/FIX

car Vehicle Data

1995 Chevrolet K2500 Suburban

VIN 1GNGK26N7S
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
OccursAlways