× 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 Ranger XLT 4.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 5/19/2011 8 Replies

Hey techs, I've got another headache here. Another shop tuned this one up, replaced maf & replaced o2 sensors to try and fix this one. It's running RICH. It runs better w/ maf unplugged...that's how they got it here. We back probbed the pcm & got 3.2v on the m...

8 Replies Received (View Replies)

  Related Documents & Media  1993 Ford Ranger XLT

 
Message Closed w/FIX

car Vehicle Data

1993 Ford Ranger XLT

VIN 1FTCR14X3P
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
EmissionsFED
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursAlways
Message Closed w/FIX

car Vehicle Data

1993 Ford Ranger XLT

VIN 1FTCR14X3P
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection
EmissionsFED
SymptomsExcessive Emissions, Poor Fuel Economy, MIL Lamp On
OccursAlways