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MegaSquirt Wiring Bundle - 23
MegaSquirt Wiring Bundle - 23
MegaSquirt Wiring Bundle - 23
MegaSquirt Wiring Bundle - 23

MegaSquirt Wiring Bundle – 23″ Long

5.00 out of 5 based on 2 customer ratings
(2 customer reviews )


In stock


MegaSquirt Wiring Bundle – 23″ Long

Perfect for creating your harness adapter (perhaps using a DIYBOB along with this) or for tying into your stock wiring harness!

  • 23″ 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 or MS-2 use
  • Shielded Ignition input wire

This will give you all of the color coded automotive grade wiring you’ll need to wire up all of the sensors, ignition components, and the ECU side of the injectors when tying into your factory wiring harness or building a harness adaptor.

Includes these wires:

QuantityWire ColorWire GaugeFunctionLabel
1Tan20Extra I/OMS 3 : SPR1 CAN-H
1Tan / Red20Extra I/OMS 4 : SPR2 CAN-L
1Tan / Green20Extra I/OMS 5 : SPR3
1Tan / Orange20Extra I/OMS 6 : SPR4
1Black/White20Sensor Ground
1Orange20Intake Air Temp SensorMS 20 : AIR TEMP
1Yellow20Coolant Temp SensorMS 21 : COOLANT TEMP
1Light Blue20TPS SensorMS 22 : TPS SIG
1Pink20O2 SensorMS 23 : O2 SIG
1Shield 2 White Conductor20Ignition Input Signal (Tach)White: CRANK CKP+ / RPM INPUT Black: CKP-
1Blue/White20IAC1A (MS-II)MS 25 : IAC1A
1Gray205v VREF (TPS, etc)MS 26 : 5V+ VREF
1Blue/Red20IAC1B (MS-II)MS 27 : IAC1B
1Red2012v+ Power to MS (switched)MS 28 : 12V+ SWITCHED
1Green/White20IAC2A (MS-II)MS 29 : IAC2A
1Light Green20Fast IDLE (FIDLE) Control (switched ground)MS 30 : PWM IDLE
1Green/Red20IAC2B (MS-II)MS 31 : IAC2B
2Blue20Injector Bank 1MS 32+33 : INJ BANK1
2Green20Injector Bank 2MS 34+35 : INJ BANK2
1Brown20Ignition Output (MS-II)MS 36 : SPARK A
1Purple20Fuel Pump Relay Control (switched ground)MS 37 : FUEL PUMP RELAY –

Customers' review

Rated 5.00 out of 5 stars
2 reviews
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2 reviews for MegaSquirt Wiring Bundle – 23″ Long

  1. 5 out of 5

    When you see the care they take with even simple things like this, it confirms how professional this company is. All wires professionally cut and ready for you to connect, they were delivered in a labelled, zip lock bag and I am very satisfied with quality.

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  2. 5 out of 5

    Very nice. I am running mt Megasquirt II in a sandrail, so everything is pretty much a custom setup. I only needed about 2 feet of wire to run to the motor, and the labeling is nice, this way, if I have a problem at the dunes, it will be easier to trace my wires.

    Was this review helpful to you? 0 of 0 people found this review helpful

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Are you able to provide wiring with custom colors or labeling?

  • Sorry, we are not set up to custom print wiring at this time.

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