Description
MegaSquirt MS3X Wiring Bundle – Length = 23″
- ~23″ of TXL High temp automotive grade wire.
- Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here!
- Use with MS3X Expansion board or other sequential device
Just like a short run of the MS3X harness, but with no DB37 connector. We envisioned this being used to build short harness adapters to join your MS ECU to your stock wiring harness, either directly to the wiring (cut off the stock EC connector) or through the use of a DIYBOB or other means of adapting an OEM connector to build a short patch harness to allow you to plug your MS ECU right into your factory wiring.
We’ve custom printed these to include all the inputs and outputs on the expansion board. Use for making your own wiring harnesses, or for wiring up non-MegaSquirt systems as well. Includes wiring for sequential injection, sequential coil on plug, nitrous, boost control, and more
Printed Label | Wire Gauge | Base Color | Stripe Color | |
| 1 | MS3X-1: INJECTOR G | 20ga | White-WHT | Dark blue-BLU |
| 2 | GROUND – no printed label | 20ga | Black-BLK | no stripe |
| 3 | GROUND – no printed label | 20ga | Black-BLK | no stripe |
| 4 | MS3X-4: INJECTOR F | 20ga | White-WHT | Dark green-GRN |
| 5 | MS3X-5: FLEX FUEL INPUT | 20ga | Orange-ORN | no stripe |
| 6 | MS3X-6: BOOST CONTROL | 20ga | Light green-LTGRN | Red-RED |
| 7 | MS3X-7: INJECTOR E | 20ga | White-WHT | Red-RED |
| 8 | GROUND – no printed label | 20ga | Black-BLK | no stripe |
| 9 | MS3X-9: IDLE VALVE | 20ga | Light green-LTGRN | Pink-PNK |
| 10 | MS3X-10: INJECTOR D | 20ga | White-WHT | Pink-PNK |
| 11 | MS3X-11: LAUNCH CTRL IN | 20ga | Gray-GRY | Red-RED |
| 12 | GROUND – no printed label | 20ga | Black-BLK | no stripe |
| 13 | MS3X-13: INJECTOR C | 20ga | White-WHT | Light green-LTGRN |
| 14 | MS3X-14: SPARK A | 20ga | Yellow-YEL | no stripe |
| 15 | MS3X-15: SPARK C | 20ga | Yellow-YEL | Light green-LTGRN |
| 16 | MS3X-16: INJECTOR B | 20ga | White-WHT | Orange-ORN |
| 17 | GROUND – no printed label | 20ga | Black-BLK | no stripe |
| 18 | MS3X-18: SPARK G | 20ga | Yellow-YEL | Dark blue-BLU |
| 19 | MS3X-19: INJECTOR A | 20ga | White-WHT | no stripe |
| 20 | MS3X-20: INJECTOR H | 20ga | White-WHT | Purple-PUR |
| 21 | MS3X-21: SPARE ADC | 20ga | Light blue-LTBLU | no stripe |
| 22 | MS3X-22: EGO2 | 20ga | Light blue-LTBLU | Dark blue-BLU |
| 23 | MS3X-23: EXT_MAP | 20ga | Light blue-LTBLU | Red-RED |
| 24 | MS3X-24: NITROUS OUT 1 | 20ga | Light green-LTGRN | no stripe |
| 25 | MS3X-25: NITROUS OUT 2 | 20ga | Light green-LTGRN | Dark blue-BLU |
| 26 | MS3X-26: TACH OUTPUT | 20ga | Light green-LTGRN | Orange-ORN |
| 27 | MS3X-27: VVT | 20ga | Light green-LTGRN | Dark green-GRN |
| 28 | MS3X-28: TABLESWITCH IN | 20ga | Gray-GRY | Purple-PUR |
| 29 | MS3X-29: NITROUS INPUT | 20ga | Gray-GRY | Dark blue-BLU |
| 30 | MS3X-30: DATALOG INPUT | 20ga | Gray-GRY | no stripe |
| 31 | MS3X-31: PT4 LOGIC OUTPUT | 20ga | Purple-PUR | no stripe |
| 32 | MS3X-32: CAM INPUT | 20ga | Dark green-GRN | no stripe |
| 33 | MS3X-33: SPARK B | 20ga | Yellow-YEL | Orange-ORN |
| 34 | MS3X-34: SPARK D | 20ga | Yellow-YEL | Pink-PNK |
| 35 | MS3X-35: SPARK E | 20ga | Yellow-YEL | Red-RED |
| 36 | MS3X-36: SPARK F | 20ga | Yellow-YEL | Dark green-GRN |
| 37 | MS3X-37: SPARK H | 20ga | Yellow-YEL | Purple-PUR |
Note that this bundle only includes the wires on the MS3X expansion board. Wire bundle for the MS3 main board is sold separately.
Product FAQ
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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$19.00