× 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
1987 Chevrolet S10 Blazer 2.8L Excessive Emissions
Posted to GM Driveability on 11/18/1997

My real concern relates to the quickness this transitions to open loop from closed at idle. In closed loop, emissions are passable, though I'd feel better with a new cat conv. At idle it'll go open loop in 5-10 seconds, and immediately fail emissions. Current ...

  Related Documents & Media  1987 Chevrolet S10 Blazer

 
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet S10 Blazer

VIN 1GCCS14R1H
Engine2.8 L / 6 cyl
EmissionsUS FED Emissions, OBDI
SymptomsExcessive Emissions
OccursIdle
Misc.Early Tbi
Message Closed w/FIX

car Vehicle Data

1987 Chevrolet S10 Blazer

VIN 1GCCS14R1H
Engine2.8 L / 6 cyl
EmissionsUS FED Emissions, OBDI
SymptomsExcessive Emissions
OccursIdle
Misc.Early Tbi