Supra Circuit Solutions

05/23/2026

New product!!! Knock sensor rewire kits now available. Single wire kits (GE) $65 shipped in the US. Dual wire (GTE) $110 shipped in the US! Install instructions coming soon! Follow the page to keep up to date with new product offerings.

05/20/2026

What electrical products would you like to see for the Mk3? I’m thinking of doing knock sensor rewire kits, fuel pump wiring upgrade kits and possibly engine harness connector kits. Let me know what there is a need for and I will build it!

05/07/2026

Here is the current pricing list and some additional information about how things work. If anyone has questions or would like to discuss a quote, please message me.

05/05/2026

Recently acquired this 1989 supra wiring diagram book. It covers the 1G and 7M in the JDM supra. This allows me to expand my harness offerings and be confident that I am providing complete and reliable product. While it is mostly in Japanese, Google Translate works wonders. I am still searching for a 1990-1992 version to get the 1JZ diagrams.

05/05/2026

Here is another harness I made for a customer. Remember I can do anything from bone stock to totally wild builds!

05/05/2026

Heres one that went all the way to Australia recently to swap a 7M into a Holden. Factory ECU and automatic transmission controls from a 92 supra. This was definitely a challenging build to incorporate a few things in different places and work with the customer to makes sure everything was perfect before shipping it around the globe!

05/05/2026

Hi everyone! I'm finally getting around to making a page dedicated to my harness building business. I will slowly be moving everything over to here and posting more updates and information. If you have any questions, please reach out.

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01/26/2018

I've decided to open up my own side business and do some automotive work. I have dealership scanner capabilities and can read engine, transmission, brake and airbag codes on all makes and models. I also have tons of experience on upgraded street cars all the way to full race cars. Please call or message me for your automotive needs