$59.00
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MS3Pro ULTIMATE adds nearly 50% more I/O with the addition of a third AMPSEAL 23-pin, 8′ flying lead. Harness arrives with color-coded, printed wires per the pinout below (black center connector)
***Center Harness ONLY in this listing, intended for people upgrading from MS3Pro Evo with no other changes needed, or from MS3Pro Gen1 (which requires only a few changes to wiring on the white/grey connectors)
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Is the center connector required to run MS3Pro ULTIMATE?
No, but why leave nearly half of your available inputs and outputs on the table? At MINIMUM, pin #23 of the MS3Pro ULTIMATE must be connected to 12V+ battery power. See pinout for I/O possibilities with the center harness.
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We've wrapped a 10K, 1/4 watt resistor in a sealed and strain-relieved package for underhood use. Red heat shrink tubing with yellow leads. Typically used as a shunt resistor with VR sensors.
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The MS3Pro ECU’s feature user-replaceable fuses that protect against voltage spikes and other abuse. To replace these fuses, use a needle nose pliers to pull the fuse out of its holder, and then push in the replacement fuse by hand. This is the 6000m...
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Planning to make your own ULTIMATE harness? This plug and pin kit features the MS3Pro ULTIMATE AMPSEAL white, black & gray connectors, plus 100 pins- more than enough for making your own! (EVO/ 1st Gen 2-connector AMPSEAL Kit sold separately)
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If you have a previously installed MS3Pro harness (1st Gen flying lead or LS Drop On Harness) and want to upgrade to MS3Pro EVO or ULTIMATE ECU, the upgrade path is simple. However, complete functionality will require a few basic changes to your 1st Ge...
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Many older tachometers trigger off the negative terminal of the ignition coil. Often, these use a filtering circuit which will not trigger when given a 0 to 12 volt square wave signal, such as the tach output signal from an ECU or ignition box. If you h...
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1 review for MS3Pro ULTIMATE Center Harness