Wiring and Sensors What additional hardware will help me test and wire my MegaSquirt®? Is there a wiring schematic for the sensors, injectors, etc.? What connectors do I use and where can I get them? What is the relay board? How do I make a wiring harness pigtail? What should I know about oxygen sensors? What temperature sensors can I use with MegaSquirt? What is EasyTherm? How do I choose a throttle position sensor? Can I use other MAP sensors? How do I convert pressures (kPa, Hg, psi, etc.)? What is a fast idle air valve? What size wire should I use? What are the MegaSquirt® physical size and power requirements? What if I don't get a good ignition signal for MegaSquirt? Why don't my temperature sensors and TPS work with my Relay Board? Can I share temperature sensors between MegaSquirt® and my existing ECU?

Click on one of the following links for answers to many more frequently asked questions:

How to Purchase	How MegaSquirt® Works/Code	Assembly & Testing
Wiring & Sensors	Fuel Injectors and Supply	Tuning
Turbocharging & MegaSquirt®	MegaSquirt® Related Hardware	Links

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MegaSquirt^® is an experimental device intended for educational purposes.
MegaSquirt^® controllers are not for sale or use on pollution controlled vehicles. Check the laws that apply in your locality to determine if using a MegaSquirt^® controller is legal for your application.

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©2004, 2007 Bruce Bowling and Al Grippo. All rights reserved. MegaSquirt^® is a registered trademark.