adl16v

Hey all I just finished dropping in a Aristo 2jzgte into my 95 sc300 5speed. I have everything hooked up from what I can see but there is 1 plug by the ecu and all the body plugs that need a home or spliced into something. here is a pic of the plug IDK where it came from or is it from the Aristo harness or SC harness. Anyways it has 2 blk/org wires 1 yellow 1 black 1 red/blk wire going to it



Also I have another plug thats on the intake side asyou can see in the pic below if any1 can help identify it? it has a grey wire and a blk/red wire?



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adl16v

any1?? or anyone know at least if this plug is on the OEM sc300 harness?

account2x

iTrader: (5)

it's not used

adl16v

is it on the sc3 harness? I should of noticed when I pulled it out before I had the wiring done..

adl16v

another connector added.. Any help would be nice just trying to get my beast running. It idles rough then dies out..Maybe one of these connections is the culprit.

stockhatch

iTrader: (12)

Get a pic of the grey connector that shows the end of it and more of the surrounding area. Where does it come off of the loom? The white connector is called the "short connector" and is not used for anything except possibly diagnostics.

adl16v

thanks for the info so 2 says the white one is not used so it must now be used il go with that. I will get a better pic of the black connector just hanging around the intake side. maybe its used for egr that was on the sc3 setup for some type of solenoid? Its just idles kind of rough and when i gas it, it just dies, Maybe coils or fuel?

stockhatch

iTrader: (12)

Does the check engine light work? Check the map sensor to be sure it has a vacuum hose attached to it also. So did you just add wires to your SC harness to run the engine, or did you merge the Aristo engine harness with the SC body harness?

account2x

iTrader: (5)

white connector is on the sc3 harness but it's not plugged in. all the pins are connected to other plugs.

the black and gray plug is some kind of vsv most iikely evap.

adl16v

thanks all car is running a little better now. I had to re-arrange some wiring on the coil packs, but still missing once i gas it. Still running the SC3 fuel pump, IDK if the usdm 550's, mines ecu and usdm turbos are too much for it?

stockhatch

iTrader: (12)

The 550s and mines ecu are probably killing it. For one thing, a Mines ECU will generally add fuel and timing. Pair that with larger than stock injectors and it is probably just dumping the fuel. Of course the stock SC pump is going to struggle to keep up, so its all really a recipe for disaster without a good pump and some way to monitor fueling. I assume you added a resistor pack with those 550s?

FAT HEAD

iTrader: (1)

i'm pretty sure my boy had the same problem with this plug, we finally found where it went, but i can't for the life of me remember what it was... i'll try and get a hold of him and see if he remembers, i wanna say it was for something stupid though...

adl16v

Yes I have the resistor would it even start w/o it? Im not at all driving it yet. It starts misfiring pretty bad once I try and rev it up. i will change the pump out and see what happens also check the plugs again since there the ones that came with the swap

adl16v

Ok cool thanks man. I have been hearing its for some kind of diagnostic

lexusdog

iTrader: (1)

That plug near the ecu in the harness is not used. It is for diagnostics like others have said. Do yourself a favor and put a tt fuel pump in the car before any driving. If you have the aristo ecu, I would put that in and see how it runs. Make sure your main o2 sensor is wired properly as well. If you do not have a wideband on the car, I would strongly consider getting one to see what the car is doing when it is at idle.