× 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
1990 Pontiac Grand Am LE 2.3L Excessive Emissions, Poor Idle Quality
Posted to GM Driveability on 9/15/2004 8 Replies

Vehicle is failing Calif. ASM smog check for NOx, HC, and CO. The gases listed in the Idle section of this post are the 15/50 portion of the test. The gases listed in the Cruise section are the 25/25 portion.

15mph/50% load:

measured-limits

HC [...] faile...

8 Replies Received (View Replies)

  Related Documents & Media  1990 Pontiac Grand Am LE

 
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Am LE

VIN 1G2NE54DXL
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / SEFI
EmissionsCalif OBD1
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Quad 4
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Am LE

VIN 1G2NE54DXL
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / SEFI
EmissionsCalif OBD1
SymptomsExcessive Emissions, Poor Idle Quality
OccursAlways
Misc.Quad 4