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2009 Chevrolet Traverse LTZ 3.6L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 12/31/2013 10 Replies

This is our shop vehicle,originally set this DTC and found one of the post cat o2 sensor's heater shorted.I chose to replace all four of them as the vehicle has been trouble free and they are all the same [...] mil stayed off for several weeks ,then intermitte...

10 Replies Received (View Replies)

  Related Documents & Media  2009 Chevrolet Traverse LTZ

 
Message Closed w/Summary

car Vehicle Data

2009 Chevrolet Traverse LTZ

VIN 1GNER33D89
Engine3.6 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / setting a P2099 DTC
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursIntermittently

Trouble Codes

P2099Downstream Fuel System Rich - HO2S-22 (Bank 2 Sensor 2)
Message Closed w/Summary

car Vehicle Data

2009 Chevrolet Traverse LTZ

VIN 1GNER33D89
Engine3.6 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / setting a P2099 DTC
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursIntermittently

Trouble Codes

P2099Downstream Fuel System Rich - HO2S-22 (Bank 2 Sensor 2)