V8 Miata Wiring, Electrical, and ECUs v8 conversions on a Miata can be tricky. Post your comments or questions within with regards to swap wiring and electrical.

Auto NA miata main wiring harness question

Old 09-07-2018, 08:30 PM
V8 Miata Noob
Thread Starter
Join Date: Jan 2018
Location: Lemont IL
Posts: 9
Likes: 0
Recieved 0 Likes on 0 Posts
Default Auto NA miata main wiring harness question

I have a 1994 auto miata that I got as a roller and I started collecting parts for a 5.0 5 speed swap. I started working on the car getting it ready for the swap. I pulled the dash out and found the the PO cut through the main harness in two spots. I found a local guy parting out a 97 auto and he gave me a great deal on the entire harness. I have the harness installed and I installed all three pedals from a manual 96 miata.

Before I bolt the dash back in I had a few questions.

I removed the flasher relay from the auto bracket that has the resistor and installed that but left the other relay and resistor part out, is that ok?
Do I have to cut or jumper wires under the dash in the main harness to get the speedometer to work? I read a post that this needed to be done but I dont understand why.
How do I wire the neutral safety switch?
Any other harness modifications I need to do before the dash goes back in?
obrut is offline  
Related Topics
Thread Starter
Last Post
V8 Miata Wiring, Electrical, and ECUs
02-26-2015 11:36 AM
Parts For Sale
02-06-2015 09:15 AM
V8 Miata Wiring, Electrical, and ECUs
08-07-2014 07:57 AM
V8 Miata Wiring, Electrical, and ECUs
04-29-2014 08:36 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:

Quick Reply: Auto NA miata main wiring harness question

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.