× 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
Re: Fuel Trim?? p0171,p0172
Posted to Snap-on Handheld Users Group on 10/13/2005

Hi Gary,

I think you'd be better suited using a graphing scanner rather than a PGM in this case.

[2000 Toyota ECHO, ECM/Inputs/Outputs Scandata]

The upper screen is short term fuel trim (white) and long term fuel trim (yellow). The lower screen is load (... Login to read more.

Files Referenced:

thumbnail thumbnail thumbnail