NC Miata Alternator Control
While Haltech does not offer a PnP kit for the Mazda Miata Nc chassis, we do support the CAN for it, so it is an option for custom wiring or getting a patch harness from Roadster Wire Works.
We offer a Nexus S2 ECU that you can pair with their PnP harness to create your own Mazda Miata NC PnP kit.
While the OEM ECU is located in the engine bay near the airbox, the PnP kit above moves the Haltech ECU into he cabin to keep it safe from rain, engine fluids, and heat.
This install is fairly simple, minus the OEM Mazda alternator not having a good internal regulator that you can control. For this reason we recommend installing a new internal regulator into the alternator.
The Transpo IM564 is the new regulator to use, and is a direct swap into the OEM Mazda Alternator. This will let the alternator charge on its own with no signal from the Haltech ECU like most modern alternators.
You can also remove the regulator from these OEM alternators if you want as well.
MITSUBISHI 5648111D A866X56472 A866X56472AM
MOBILETRON VR-H2009-148
NISSAN 23215-BC40A 23215-JG71A
ELECTROLOG REG5140
KRAUF ARM3564
PSH 052.000.595.136 052.000.595.208
WAI / TRANSPO IM564
WOODAUTO MITA866X56472 VRG47524
Once you get the regulator there is an article attached that goes over the install into the Mazda Miata alternator housing.
From there, just load the base map and let your tuner handle the rest.
If you are looking for more info on the NC Miata engine, here is a link to our knowledge base article.
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