Table of Contents
MegaSquirt
Articles
Mechanical
Wiring
Firmware
Connectivity
Tuning
FAQ
General
Fuel
Wiring
Sensors
Connectivity
MegaSquirt
Articles
Mechanical
Fuel Injector Calculator
Chrysler Temperature Sensor Calibration
Wiring
Proper Grounding
How to Solder Wires Together
Working with Coaxial Cable
Adding an ASD Relay to the Fuel Pump Relay Output
Firmware
MegaSquirt Firmware Downloads
Flashing Firmware into MegaSquirt ECU's
Connectivity
USB-serial Adapter Connectivity
Built-in Serial Port Connectivity
Tuning
Official MegaSquirt Documentation
Tuning and Logging Software
Activate Your EFI Analytics License
FAQ
General
What is MegaSquirt?
MS1? MS2? v2.2? v3.0? MSnS-E? MS/Extra? What does this all mean?
Which MAP sensor should I choose?
Will I get a CEL (check engine light) from installing a MegaSquirt system?
Can I remove the stock PCM?
What are option circuits?
I bought a pre-built MegaSquirt ECU, what else do I need?
Are there base maps available?
Can SymTech Labs repair or add options and modifications to my existing MegaSquirt ECU?
Where should I go for support installing my SymTech-built MegaSquirt ECU?
Where should I go for support configuring my SymTech-built MegaSquirt ECU?
Fuel
Can I control just fuel?
If I run fuel-only control, am I limited by the stock rev limiter?
What kind of fuel pressure regulator should I use?
Can my MegaSquirt ECU control low impedance (low-Z) fuel injectors?
Wiring
How do I properly connect to an optional MegaSquirt hardware circuit? It's not doing anything/blowing a fuse/responding erratically/etc.
Does it matter how the fuel injectors are connected to the INJx wires?
My MegaSquirt wiring harness only has one idle air controller (IAC) wire, but my IAC has four or more wires.
Sensors
Does my MegaSquirt ECU require any special sensors?
Connectivity
How do I connect to my MegaSquirt ECU?
My SymTech Labs USB-Serial adapter won't plug into my SymTech MegaSquirt ECU!
I can no longer communicate with my SymTech MegaSquirt ECU.
I could never communicate with my SymTech MegaSquirt ECU.