Long Term Fuel Trim

Nexus Series Firmware Help › Fuel Tuning › O2 ControlUpdated Dec 2022

Quick summary

How it works The Long Term Fuel Trim is a function where the ECU can learn the correct amount of fuel required over a period of time so that the Target and Actual measured AFR are equal. Sometimes this is referred to as Auto-Tune. Both Narrowband and ...

Summary from Haltech's knowledge base