× 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
2006 Chevrolet Trailblazer LT 4.2L Check engine light, Fuel trims
Posted to GM Engine on 12/7/2017 16 Replies

Vehicle sets a p0171 at idle. LTFT @ 15-20% at idle and 3-5% under load and on decel. Intake gaskets and MAf were done first by another tech to no success. he is now away and i am now checking. at this point i have smoke tested multiple times, as well as s...

16 Replies Received (View Replies)

  Related Documents & Media  2006 Chevrolet Trailblazer LT

 
Message Closed

car Vehicle Data

2006 Chevrolet Trailblazer LT

VIN 1GNDT13S36
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCheck Engine Light, Fuel Trims
ConditionsP0171 Code. No Driveability Issues
Message Closed

car Vehicle Data

2006 Chevrolet Trailblazer LT

VIN 1GNDT13S36
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCheck Engine Light, Fuel Trims
ConditionsP0171 Code. No Driveability Issues