× 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
1991 Pontiac Sunbird LE 2.0L Excessive Emissions, Poor Idle Quality
Posted to GM Driveability on 9/30/2009 6 Replies

Greetings: Vehicle failed CA ASM test for elevated NOX at 15/50 portion of test. Monitored O2 when performing baseline- no symetry and very jaggeded. Observed 12 in vacuum to egr while testing. Timing at 10 degrees. Alldata gave wrong info as to what type of e...

6 Replies Received (View Replies)

  Related Documents & Media  1991 Pontiac Sunbird LE

 
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Sunbird LE

VIN 1G2JC14K0M
Engine2.0 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / tbi
EmissionsCA
SymptomsExcessive Emissions, Poor Idle Quality
OccursUnder Load, Idle
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Sunbird LE

VIN 1G2JC14K0M
Engine2.0 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / tbi
EmissionsCA
SymptomsExcessive Emissions, Poor Idle Quality
OccursUnder Load, Idle