Hi guys, Ive recently started a 2jz-gte conversion on my soarer. The engine im using is out of a Toyota Aristo. Im having a few problems finding the right wiring diagrams. The main diagrams im after are the pinouts of the ECU also http://i80.photobucket.com/albums/j188/rip1jz/Aristoplugs.jpg im after the wiring diagrams for plug "B". I do have all the diagrams for a Supra but i have been told that the wiring looms have slight differences. If anyone has them and wouldnt mind giving them up or can point me in the right direction towards finding it would be appretiated. thanks guys.
Very little is involved really... what we did was remove the 2JZ loom from the engine and all sensors, then replace it with the 1JZ loom. From memory we had to modify the water temp plug to a 'spade' type, but that was about all. The 1JZ loom plugs into all of the Aristo 2JZ sensors (they are all in the same locations), so it shouldn't be too confusing.
Monday, May 22, 2006 - 04:33 pm, by: Michael Keen(Jzz30man)
Simon, you mentioned that you removed the 2J sensors with the loom. But didn't say they you had to install the 1J sensors in the 2J, which i understand is required. Can you recall which sensors you removed from the 2J and replaced with 1J sensors? I'd hop it doesn't include things such as the Cam Position Sensor and O2 Sensor? A list of which sensors you replaced would be very handy for me too, if you can remember or kept a record. cheers
Poor wording on my behalf... remove the loom from *the engine and sensors*. No requirement to remove any 2JZ sensors. The 1JZ loom plugs back into the sensors already supplied on the 2JZ.
Thanks for all your replys. Simon, what computer are you using? Does anyone have any ideas where to get those aristo wiring diagrams from. Ive posted up on a few toyota forums and no body knows. thanks guys.
Tuesday, May 23, 2006 - 08:19 am, by: Lew Radbourn(Marlew)
the only sensors we replace on simons motor was because simons original motor was a later model and thay changed a couple of terminals from the 91 model. changing the loom is very easy . and don't panic that you will stuff up were every plug goes . there is no two plugs the same EXCEPT the coils and injectors. you can't run the sequential turbo set up the 1jz computer doesn't have the capability to do this. cheers Lew
Tuesday, May 23, 2006 - 12:32 pm, by: Chris Davey(Chris_davey)
Simon has
If he can run a plug and play 1jz ecu then you could run a stock 1jz ecu. I don't think it would be a good idea though as it is obviously going to need more fuel for starters. I think the way Simon has done it is best and easiest. A lot easier than using the 2jz loom and splicing into soarer's loom IMO.
Tuesday, May 23, 2006 - 01:23 pm, by: Chris Davey(Chris_davey)
well you have an extra 500cc total and 440cc injectors instead of 380's so I suppose it is possible. Also depends on what MAP sensor you use. Personally, I wouldn't chance it.
Tuesday, May 23, 2006 - 02:55 pm, by: Lew Radbourn(Marlew)
yes mate simon has my old motor in his car now. Neil and i did my car about 4 years ago. so yes the 1jz loom can be used on a 2jz the 1jz computer will run the 2jz, JUST not the sequential side of the turbos. 1jz map sensor is fine to use.
Tuesday, May 23, 2006 - 06:19 pm, by: Cihan Aday(Cihan)
The stock fuel tune is very rich. Ideal timing should be the very close, same bore, same piston and chamber design. Should run perfecto buddy
Hows the cost side of things shaping up Valdimar? Dragans doing the conversion also, maybe have talk with him once he starts if you get stuck along the way.
Hey guys thanks for all your replys, i think i will go with using the 1jz loom instead of trying to use the 2j one as finding information has turned out to be a very big problem. Cost wise it hasnt been to bad, im up to around $3500 NZD at the moment thats including buying the engine, ecu, loom, new alloy radiator and a few things here in there. Still to do frount mount intercooler and maybe using a power FC aswell, still looking into it. So hoping for just a little over 4gs if i dont do the power FC.