MA70 --> JZA70 Conversion

[EldarO]

problem is we havent got the diags for the body loom, and i dont exactly have the "know how" to get the basics running.

the car is 100% mechanically good to go, just need to pour in some transmission fluid, but the wiring is still at square one, we've hooked it up to crank from the key, but thats about it, i think the injectors are firing too, as exhaust pipes smell a bit fuelie...

Shannon, i beleive your hooking up Mikes 7MGTE? as it came out of my car, you'll have the same problems, although you'll be able to work it out, im electrically inept :/

Eldar.O.

[urantia]

Can you get photo's of the plugs you need to wire up still? i can write down what each one does and what it has to go to if you like. (well not every wire, but the ones you'll need to get it running at least)

[EldarO]

we're gonna try again today, if not, ill snap a few pics and post em up.

the JZA70 side matches up, just not the funky ass MA70 side, it must be because its GT Limited

Eldar.O.

[triptek]

Show us some pics of the plugs and i'll tell ya what ya need to hook up. The wiring should be virtually identical to whiplash's, which i can still remember. Some of the wire's are different on the gt limited's compared to any of the supra wiring diagrams on the net. For example the igsw signal was a grey wire on whiplash's car compared to the black/orange on the jza70 loom.

Just ask if ya need any help cos i'm hooking a soarer motor into a cressida today. Cressy wiring very similar to a jza70.

[EldarO]

alright, snapping a few pics of the wiring, ill post em up in a few mins...

Eldar.O.

[EldarO]

not a pic, slightly different, but here ya go.



these are the MA70 plugs, cut fromt he old 7MGTE loom.

all the pinouts are looking directly at the plug, with all the wires hanging out the other side.

Eldar.O.

[triptek]

To start the thing you need the 2nd plug. The one with the 3 fat wires. like i said the grey wire is your igsw, the fat black/white wire is your starter signal. The fat black/orange wire is your injector/coil power. Have you connected the ecu power up in the engine bay yet. Dunno about the fuel pump cos we just hooked 12v to it.

[EldarO]

ive got the JZA70 diagrams, and i thought that one was the one i needed, the fat wires, bar the blue one have all been hooked up.

we cut the engine 7MGTE connectors off, and the halfcut body connectors, so we'll put it in, plug it up and everything will be able to easily put back to factory, if need be.

the ECU has 12v, but thats as far as i know, the fusebox is a rather big mess, ive hooked up the alternator to the EA2 connector, and thats about it...

fuel pump, for now, we've just whacked 12v to it.

Eldar.O.

[triptek]

have ya connected the grey wire up yet

[EldarO]

ok, on th harness in front of me, i have all the fat wires hooked up, in addition, the thick (but not thickest) black/red wire is hooked in with the fat wires, and ive now joined the grey MA70 wire, and the JZA70 black/orange IGSW wires.

anything else before i can call this complete and trouble shoot the fusebox? (to start the car.)

Eldar.O.

[EldarO]

triptek is a fucking god!

mass rep for him. do it now!

the 1J is up and running!

Eldar.O.

[triptek]

Good to see it all worked out. Well after 2 motors and 5 days my cressida is officially a jzx83

[EldarO]

somebody tell me how i can wire up my fuel pump relay to work like factory, i dont want to wire it to "on"

ive connected the Black-Red and Yellow-Blue wires, and it doesnt work!

Eldar.O.

[Mr Ed]

SBS test pattern??

[EldarO]

bahahah, something like that, i didnt have time to label the plugs and write in pin numbers

Eldar.O.