× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2002 Chevrolet Tahoe LS 5.3L Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 2/16/2009 4 Replies

This truck came in with a p0178 scanned and checked info on scanner and ms=0 and frequency=0 when running, wiggled truck and both stay 0. Checked wires at sensor only 3 and has 14.2v on power and ground wires and 7.2 on ref wire, scanner still says 0. Plugged ...

4 Replies Received (View Replies)

  Related Documents & Media  2002 Chevrolet Tahoe LS

 
Message Closed w/Summary

car Vehicle Data

2002 Chevrolet Tahoe LS

VIN 1GNEK13Z82
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0178Flexible Fuel Sensor Signal Circuit Low Voltage
Message Closed w/Summary

car Vehicle Data

2002 Chevrolet Tahoe LS

VIN 1GNEK13Z82
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0178Flexible Fuel Sensor Signal Circuit Low Voltage