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1998 Chevrolet Tahoe LS 5.7L Egr, Evap, CAT monitors
Posted to GM Electrical on 2/22/2013 7 Replies

Need help to confirm EGR monitor enable criteria. Will confirm TPS again and disconnect brake light switch and drive on dyno tomorrow. Truck runs fine. No codes. Will not run the three monitors for some unknown reason.

7 Replies Received (View Replies)

  Related Documents & Media  1998 Chevrolet Tahoe LS

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet Tahoe LS

VIN 1GNEC13R1W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEGR, Evap, Cat Monitors
ConditionsWill Not Run 3 Monitors
Misc.New Front O2 Sensors, Thermostat, ECT, Evap Vent Solenoid, Evap Purge Solenoid
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet Tahoe LS

VIN 1GNEC13R1W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEGR, Evap, Cat Monitors
ConditionsWill Not Run 3 Monitors
Misc.New Front O2 Sensors, Thermostat, ECT, Evap Vent Solenoid, Evap Purge Solenoid