× 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 Chevrolet Lumina 3.1L Poor Idle Quality, Surge
Posted to GM Driveability on 2/14/2000

first off this is a lumina CAR. at idle hot above 200 F or so BLM and intergartor will go up to 156 and o2 will not come above 350mV . during this time it will run poorly howener if manually enriched engine rpms will rise and roughness goes away i have tho...

  Related Documents & Media  1990 Chevrolet Lumina

 
Message Closed

car Vehicle Data

1990 Chevrolet Lumina

VIN 2G1WN14T5L
Engine3.1 L / 6 cyl
Emissionsfed emissions
SymptomsPoor Idle Quality, Surge
OccursHot
Message Closed

car Vehicle Data

1990 Chevrolet Lumina

VIN 2G1WN14T5L
Engine3.1 L / 6 cyl
Emissionsfed emissions
SymptomsPoor Idle Quality, Surge
OccursHot