Knowledge Base

AllTuningGetting StartedTroubleshooting

EGO Correction PID Setup

How to configure closed-loop EGO (oxygen sensor) correction with PID tuning on Megasquirt 3 for optimal air-fuel ratio control.

Step-by-step guide to get your MS3 ECU up and running for the first time. Covers initial wiring, TunerStudio setup, and first start.

Guide to diagnosing and resolving common Megasquirt-3 ECU issues: resets, sync loss, communication problems, and electrical noise

Guide to setting up the idle air control (IAC) valve on Megasquirt-3: control algorithms, PID tuning, and troubleshooting

Step-by-step guide for the first engine start with a Megasquirt-3 ECU: test mode, injector testing, ignition verification, and startup

Guide to fuel delivery tuning: VE table, ReqFuel, acceleration enrichment, warmup corrections, and autotune on Megasquirt-3

Complete guide to ignition setup: coil types, trigger wheels, dwell time, and ignition timing verification on Megasquirt-3

Guide to sensor calibration and basic engine parameter configuration in TunerStudio for Megasquirt-3

A detailed guide to installing, wiring, and performing initial setup of the Megasquirt-3 ECU