Cart

Quick Links

MegaSquirt 1

MegaSquirt 1 (MS1) offers a cost effective entry level to the aftermarket ECU market. Coupled with an EDIS module, the MegaSquirt 1 V2.2 offered excellent value for money mappable spark and fuel. For direct coil control (non-EDIS) the MegaSquirt 1 V3.0 is still a cheap and simple ECU. As expected MegaSquirt 1 lacks many of the features of the newer ECUs. Few OEM wheel patterns are supported, temperature sensor and wideband calibration is more tricky and there are fewer diagnostics. All features require DIY modifications to the circuit board.

If you’re looking for more full featured engine management systems we suggest you look at our MegaSquirt 2 and MegaSquirt 3 kits which provide many more features but maintain an affordable price point for total fuel injection and ignition tuning.

product disclaimer

Showing all 14 results

  • 8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready)

    $83.00

    MegaSquirt Wiring Harness - 8 Feet LongWe've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible:...

    Add to cart
  • MegaSquirt-I Programmable EFI System PCB2.2 – Kit

    $197.00

    MegaSquirt-I with V2.2 Main BoardMegaSquirt programmable EFI Engine Management System from Bowling and Grippo. Install fuel injection on anything from a single cylinder lawnmower engine to a fire breathing V12, and anything in between! This kit is eas...

    Add to cart
  • MegaSquirt-I Programmable EFI System PCB3.0 – Kit

    $254.00

    Part # MS130-K; MegaSquirt-I Programmable EFI System with V3.0 main board - Unassembled Kit with Black CaseThe MS130-K kit includes everything you will need to build your MegaSquirt ECU. The genuine B&G partial kit with PCB3.0, the Bill Of Materia...

    Add to cart
  • MegaSquirt Tuning Cable (DB9 Straight Thru)

    $5.50

    DB9 6' Male/Female Straight thru cable for tuning and testing your MegaSquirt ECU.

    Add to cart
  • MegaSquirt Relay Board – Unassembled Kit

    $94.00

    MegaSquirt Relay Board - UnAssembled Kit Part # MSRelay-KIncludes everything you will need to build your MegaSquirt Relay Board, complete with black anodized case.Though the Relay/Power Board is not required, it is a convenience and reduces the ch...

    Add to cart
  • MegaSquirt Relay Board – Assembled Unit

    $115.00

    MegaSquirt Relay Board - Assembled Unit - Part# MSRelay-CThough the Relay/Power Board is not required, it is a convenience and can reduce the chance of miswiring during the installation. The relay board provides a central place for all of the required...

    Add to cart
  • MegaSquirt Wiring Bundle – Long

    $48.00

    MegaSquirt Wiring Bundle8' TXL wire, color coded with labeling printed on the wire every 3 inches -- no paper tags here! IAC and Ignition wires are included for MS-I / MS-2 use (or MS-3 Primary Harness use) Shielded Ignition input wireGrea...

    Add to cart
  • JimStim v1.5 MegaSquirt Stimulator with Wheel Simulator – Unassembled

    $80.00

    Use this board to test the MegaSquirt's inputs and outputs on the bench, before you install it on a car!The JimStim features a microcontroller which allows the simulation of up to 30 different toothed wheels, in addition to the standard distributor s...

    Add to cart
  • JimStim 1.5 MegaSquirt Stimulator with Wheel Simulator – Assembled

    From: $120.00

    DIYAutoTune Part# JimStim-CJimStim is essentially an engine simulator, a microcontroller which allows the generates up to 30 different toothed wheel signals, in addition to the standard distributor signal. Test your RPM input on the Stim, or tell the ...

    Add to cart
  • JimStimX Expansion Board – Unassembled

    $52.00

    The regular JimStim can test the main board on your MS3. But what if you'd like to see the inputs and outputs on the MS3X expansion card in action, too? Now it's easy - just add a JimStimX! Use the three pull-off jumpers on the JimStim to connect the 5 vo...

    Add to cart
  • Jumper 10-Pack

    $7.49

    10-pack of wire jumpers in 5 colors. These fit 0.1" headers and are used on the JimStim to make connections for testing additional circuitry.   There are several other uses for them too.

    Add to cart
  • Zeal Engineering Daughterboard with Dual VR Conditioners

    $42.00

    The Zeal Engineering Daughterboard was designed and developed by Ken Culver, one of the authors of the MS2/Extra and MS3 firmware.  We're proud to now offer this daughter card in kit form. It was originally developed for the FC RX-7, but we have found it...

    Add to cart
  • MegaSquirt Flyback Board Kit (for PCBv2.2 ECUs)

    $42.00

    Includes everything you will need to build your MegaSquirt Flyback board using the case as the heat sink.MegaSquirt (PCB2.2) users running a number of very low impedance injectors have reported problems with the flyback circuit failing. Typically, thi...

    Add to cart

Take 10% OFF Every MegaSquirt 1, 2, 3, MS3X & MicroSquirt, including their wiring harnesses and ALL service parts when you enter coupon code SQUIRT at checkout! SALE ENDS TONIGHT @ MIDNIGHT EST! Dismiss