Dr Tweak

Hi Guys, I just got an email from someone who had seen this thread so I wanted to make sure I followed up on it. We have figured out a solution to this problem, and for any of our previous customers who did NOT get this fix done with their harness, we will send it to you free of charge along with instructions on how to wire it up (a small module needs to be wired into the harness). For anyone who didn't have their harness done by us and is having this problem, contact me at drtweak@phoenixtuning.com and we'll get you taken care of as well. -Doc

Okay.... How about this, anyone out there with an Aristo 2JZ swap in an SC300 or SC400 running a/c? -Doc

Hey guys, A little while ago I posted up an SC400 with an Aristo 2JZ swap that I did. Everything is working great except for the a/c. For some reason the clutch will not come on. Now I've checked out all the wiring and whatnot, and there are two wires that go to the ECU that have to do with a/c. ACMG, which grounds the a/c clutch relay, and AC, which is supposed to receive a signal from the a/c control unit in the dash. If I run a 12v signal to the ECU on the AC wire, then the ECU grounds the relay via the ACMG wire and the clutch kicks on. But for some reason the a/c control unit the dash won't send out that 12v signal. I put R134 into the system and I even jumped the pressure switch to see if that was the problem, but even with the pressure switch jumpered I never get that signal at the AC pin. I also ran the a/c trouble codes and the system shows no codes. I know a lot of you guys have done this swap (many of which I've personally wired up for you!) and I haven't heard of this problem before, anyone have any ideas? Thanks! -Doc

We're using the 2JZ Auto tranny. -Doc

The oil return lines were damaged when the car came in, so I made a new one: Mocking up the intercooler piping: Started it up! Just need to finish up a few things before it's ready to hit the road.

Thanks :) Took the intake manifold all apart and cleaned everything. I thought taking the electronics off would be a good idea before giving the manifold a bath in the parts washer :D Cleaned up and put back together: Installed. Also built a custom bracket to hold the power steering resevoir in place here. When the car came to me the hydraulic fan for the SC400 was missing, and he wanted to use the Aristo hydralic fan. Since the housing didn't quite line up to the SC400 radiator, I had to weld up some custom brackets. Cleaned up the shroud a bit too. Custom p/s line: Custom fuel line:

Just kidding :) This SC400 is getting a swap from a 2JZ Aristo and is staying automatic. First I just cleaned up the engine bay and removed all the junk in my way, and taped off the intake and turbo ports: Then I installed the plug and play harness. I decided to use heat-reflective wrap to protect it where it goes between the firewall and the engine: More updates will be posted soon :)

That's awesome Lex. What ECU and harness did you use? -Doc