Nexus S2/S3 Plug n Play Adapter Harness Mazda MX5 NA

Made for the MX-5. It plugs into the factory ECU loom, so there's no rewiring of the car. Check the fitment notes below against your car before ordering.

In the box: Injection molded plastic plug n play adaptor harness, M14 x 1.5 air temp sensor with matching plug and pins, auxiliary I/O 16 Pin Tyco plug and pins.

Suits: Plug n Play replacement of the factory ECU for Mazda Miata (MX-5) NA 1.6L and 1.8L with 2-plug, 2-row factory ECU. Manual transmission only.

Fitment notes: Does not support USDM OBDII 96-97, Special Edition SE and Anniversary models. All manual transmission 1.6L variants will require the factory throttle position sensor to be unplugged and removed. A full-range throttle position sensor alternative must be installed for correct functionality. Failure to do so will result in erratic behavior of the ECU at wide-open throttle along with damage to the ECU.

Part number: HT-186336

Usually ships within 4 days.

Want it fitted? We fit, wire and dyno tune Haltech systems at our workshop in Buckden, near St Neots. Tell us about your car.