× 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
2004 Toyota Corolla CE 1.8L Excessive Emissions
Posted to Asian Driveability on 2/13/2018 26 Replies

car came in with P0172 and long term fuel trims at -25%. cleaned throttle body checked MAF sensor. changed upstream O2 sensor. when using map gas O2s go full rich. when creating a vacuum leak O2s go full lean. checked air tube from MAF to throttle body for...

26 Replies Received (View Replies)

  Related Documents & Media  2004 Toyota Corolla CE

 
Message Closed w/FIX

car Vehicle Data

2004 Toyota Corolla CE

VIN 1NXBR32E44
Engine1.8 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
Message Closed w/FIX

car Vehicle Data

2004 Toyota Corolla CE

VIN 1NXBR32E44
Engine1.8 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)