Used factory engine control unit wiring harness without ABS for 1997 NA Mazda Miata. This is the wiring harness that connects to the main wiring harness on the passenger side of the vehicle by the firewall. This harness then connects to the engine control unit located behind the passenger seat. Also known as the ECU wiring harness. Fits 1997. Choose between manual transmission (NB84-67-110) or automatic transmission.
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