× 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
2009 Chevrolet HHR LS 2.2L Poor Idle Quality, Stall, MIL Lamp on
Posted to GM Driveability on 4/19/2017 12 Replies

Engine appears to lean misfire at idle only. Highway speeds ok.

IDLE: Long term fuel trim -15% Short term fuel (hovers around zero) injection MS pulse 1.7 engine load 24% Purge command 7% Upstream O2 rapid between 100mv and 850mv Downstream O2 steady rich aro...

12 Replies Received (View Replies)

  Related Documents & Media  2009 Chevrolet HHR LS

 
Message Closed

car Vehicle Data

2009 Chevrolet HHR LS

VIN 3GNCA13B49
Engine2.2 L / 4 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
Message Closed

car Vehicle Data

2009 Chevrolet HHR LS

VIN 3GNCA13B49
Engine2.2 L / 4 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0172Fuel System Too Rich (Bank 1)