× 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
1993 Ford Escort 1.9L Excessive Emissions, Surge
Posted to Ford Driveability on 1/12/2000

Please help if you can and thanks in advance. This car came in today. The car goes in and out of closed loop while at highway speeds. I confirmed this on a dyno. The scanner readings that are included do not seem to indicate an oxygen sensor to me. To chan...

  Related Documents & Media  1993 Ford Escort

 
Message Closed w/FIX

car Vehicle Data

1993 Ford Escort

VIN 1FAPP13J3T
Engine1.9 L / 4 cyl
Emissionsfederal
SymptomsExcessive Emissions, Surge
OccursAlways, Cruise

Trouble Codes

171Oxygen not switching at limit
Message Closed w/FIX

car Vehicle Data

1993 Ford Escort

VIN 1FAPP13J3T
Engine1.9 L / 4 cyl
Emissionsfederal
SymptomsExcessive Emissions, Surge
OccursAlways, Cruise

Trouble Codes

171Oxygen not switching at limit