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MegaSquirt Wiring Bundle - Long
MegaSquirt Wiring Bundle - Long
MegaSquirt Wiring Bundle - Long

MegaSquirt Wiring Bundle – Long

4.2222222222222 out of 5 based on 9 customer ratings
(9 customer reviews )
MegaSquirt Wiring Bundle - Long



MegaSquirt Wiring Bundle

  • 8′ 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 wire

Great for building up your own wiring harness, or wiring up your relay board where this will give you all of the color coded automotive grade wiring you’ll need to wire up the ECU side of the sensors (plus extra 20ga wire for sensor grounds), ignition components, and the ECU side of the injectors. For building your own harness on a car previously equipped with Electronic Fuel Injection, you’re good to go.  For wiring up a relay board you’ll just need the fuel pump wire, 12v supply wire to the injectors, and you’re good to go.

Our revised version adds some extra wires for CANBUS and replaces the single coax wire with a two core shielded wire for even better noise-free cam and crank signals.

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 –

Customer reviews

Rated 4.2222222222222 out of 5 stars
9 reviews

9 reviews for MegaSquirt Wiring Bundle – Long

    Only logged in customers who have purchased this product may write a review.

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

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

    Questions & Answers