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Project SC : 2JZGTE ECU Wiring into SC300 Guide

To prep the SC for the GTE swap, I’ve sourced a MT GTE ECU and a Aristo ( JDM 2JZGTE ) engine harness. For those doing this swap into a SC300, the wiring is a lot easier than the typical S-Chassis wiring in that many of the vehicle’s functions and wires are the same.

Given the similarities between the SC300 and the MKIV Supra, this is really no surprise, however you will need to lengthen and extend the third plug or body plug as well as rewire.

This body plug disconnects from the sc300 along the firewall, next to the ABS module and near the windshield.

Upon splicing open this harness, you will notice many similarities with your Aristo harness.  The large connector on this harness connects to the SC300 body plug and also the small plug that leads to the ECU.

For ease of wiring installation, we are eliminating the following wires (Traction Control D17,  Pressure sender ( Dummy Light ) D10, and Transmission Shift indicator D1)

Use the following pinout and match the corresponding colors accordingly.

courtesy of clublexus.com. not my pic

The Aristo harness and ecu plugs :

For a pin by pin how to, refer to this chart here :

Now with your engine harness properly wired, you may now remove your old SC300 harness and install your GTE ECU and plug it in. Next up, we start yanking weight in preparation of motor swap, as well as installing a new Cometic head gasket, ARP head studs and selecting our turbo setup.

Happy boosting!

Project 240SX – Oh… the Irony….

Well as some of you know, our flush mount hood pin install on a S13 writeup caused some legal issues to come to the forefront. As those issues do not pertain to me individually, I would encourage those shopping for a flush mount hood pin kit ( or ANY performance part ) to do their due diligence before plopping your hard earned cash down on anything.

So imagine the irony when my JDM hood flipped up and smashed my windshield and roof in the middle of a Patterson Pass run.

At around 45 mph, entering a hairpin turn on the south end of the canyon road, my hood suddenly flipped up. With less than 30 feet between me and a large drop off into a canyon, I was reminded why I installed a set of Evolution X calipers on my 240SX.

The car came to a stop just as the front passenger side tire had rolled off the cliff, largely unharmed but not without damage.

What my roof looks like now…..

What my kouki hood looks like now…

Where the stock hood latch decided to shear off it’s mounting points. I am unclear as to how exactly this happened, but I have a feeling the previous owner had performed some “modifications”

I am just happy that I got to walk away from the accident, and that no further damage was done.

Unfortunately, kouki hoods are hard to find nowadays and I am having a hard time justifying a carbon fiber hood since I’ll most likely have to cut holes for ventilation once the 2jz goes in.

The accident has also sped up my timetable as far as getting work done on the car. It’s just too easy for me to get into a groove and be lazy, and perhaps the hood incident will get me to get off my ass and actually complete this project.

Time will tell..

Case Studies – My R33 Skyline

I had my Skyline imported back in 2008 as a parts car with the original intention of following Motorex’s guidelines in federalizing the vehicle. After just 3 hours the motor and transmission was installed and within 5 the car roared to life.

With a bevy of HKS parts, my Skyline belted out 365 at the rear wheels at 19psi on my DynoJet.

Unfortunately, plans and funds derailed my legalization process, and after careful inspection of the NHTSA guidelines, I took the car off the streets and now it’s a track-only race car.

  • Short Mods list :
  • RB25DET Series 1
  • OS Giken Triple Plate Clutch
  • HKS 3037S Turbo upgrade
  • HKS Intercooler Kit
  • HKS HyperMax Coilovers
  • Apexi Power FC
  • Fujistubo 3.5 inch catback

On to the eye candy :

My R33 fresh off the boat

Front shot with no motor or trans

Stock interior, with the Japanese Navigation that I could never understand

Driveshaft Tunnel

Motor and trans put together

Motor and transmission installed

JDM doo!

 

My 60mm DEFI Gauges

Yes, the radio and navigation were completely Japanese, no clue how to operate them lol

365 whp on 91 pisswater octane

Thanks for lookin!