× 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
1991 Toyota Land Cruiser 4.0L Excessive Emissions
Posted to Asian Driveability on 12/17/2008 4 Replies

This FJ80 as you can see from the readings above failed the idle test only for high Co's and HC's. Above about 1500 rpms it totally cleans up. I have lab scoped the follwing signals at the ECM and all are withing specs: Coolant Temp, Air Flow,Pre and Post O2 a...

4 Replies Received (View Replies)

  Related Documents & Media  1991 Toyota Land Cruiser

 
Message Closed w/FIX

car Vehicle Data

1991 Toyota Land Cruiser

VIN JT3FJ80W4M
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
SymptomsExcessive Emissions
OccursIdle

Trouble Codes

25System Lean
26System Rich
Message Closed w/FIX

car Vehicle Data

1991 Toyota Land Cruiser

VIN JT3FJ80W4M
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
SymptomsExcessive Emissions
OccursIdle

Trouble Codes

25System Lean
26System Rich