× 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: CEL on p0171 p0174 -lexus rx350
Posted to Technical Discussion Forum on 1/7/2020

In order to get an accurate fuel trim reading after part replacement you need to reset the fuel [...] codes on scan tool does not always reset the fuel trim in my experience. Hard reset always worked by disconnecting the battery and touching the cables for 3 m... Login to read more.