× 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
1988 Chevrolet S10 Blazer 4.3L MIL Lamp on
Posted to GM Driveability on 10/8/1999

this vehicle stays in open loop and code 13 comes on after being driven a couple of miles. The scanner reads .45 v always on O2 - all other readings read normal - vehicle runs fine, but the check engine lamp keeps coming on. We cut the purple wire (D7) and...

  Related Documents & Media  1988 Chevrolet S10 Blazer

 
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet S10 Blazer

VIN 1GNCT18Z6J
Engine4.3 L / 6 cyl
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

13oxygen sensor
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet S10 Blazer

VIN 1GNCT18Z6J
Engine4.3 L / 6 cyl
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

13oxygen sensor