2jzge mx83 problems

[cressidways]

OK so I went the 2jzge route into mx83 to get some reliability and a bit more go and also less blown head gasket action, did everything mechanical myself and nd prepared myself to do the wiring but decided on paying someone to do it so I could get everything to work like it should out of factory,(and null fault lights, diagnostics and the rest) well I got the car back (done) and cold start doesn't work temp gauge old just sit on hot even when it was cold( I fixed that, brown wire needs to be earthed on 83 body loom plug) no check engine light, it idles to low and ruff(wants to almost stall even at running temp) and god only knows what else is wrong, I don't know if it's making healthy power as I have nothing to compare it too, it is a 2jzge out of a jza80, auto loom but I'm running a w58, any help or opinions are welcome and appreciated, I'm in Melbourne if anyone one wants to have a little look or tinker cheers

[dumbass]

U should have got a better person to wire it
Who did u send it to

Idle motor prob isn't powered up
Check ngine light prob not hooked up

I could have done it as I've done afew but u probably went for the cheapest guy hehe

Did he hook up reverse and speedo sensor wiring

Take it back and shove it up his arse

[cressidways]

I took it to JAK Motor sports which has a auto elec that comes in which is meant to be a jz guru, It cost me 1100 so I wouldn't say that's being cheap, but I did go cheap on my 1jzvvti x73 which is another story, where abouts you located mate and also my speedo is mechanical it is a s1 cheers

[cressidways]

And speed sensor wiring isn't hooked up, but reverse is, also tacho doesn't work but I need a booster for that apparently

[dumbass]

cool I havnt heard of them
if u had sent me your looms I could have done it for a better price
with everything working
anyway thems the breaks
I would take it back

[cressidways]

No disrespect at all but i have started the thread to get help and info on what I should look into, not to hear people's judgments on what I should and shouldn't have done, as dumb as my choices with wiring may seem to you or anyone else I actually am a little competent and would like to look over it myself instead of having a shit fight with the mechanic I took it to.

so please send any use full information my way

cheers

[dumbass]

Well u most probably need a tacho booster
Do a search and see how to make one its not hard
Or others have pulled tacho out and removed resistors to get it to work
And hopefully they have hooked up the tacho wires

Check engine light u need to find the "w" wire from 2j ecu and join it to the Cressida "w" wire

Also while it is running remove the idle motor plug and check the two centre wires for 12v
If not they need to be connected to the black/red on the Cressida loom which come from efi relay and it called +b and +b1
And it's not constant battery power , its output power from efi relay

And hopefully they have hooked up the mrel power and ecu backup battery power properly because this will affect the
Idle motor resetting and working properly

Once u hook up the check engine light then u can see what else they have fked up if the light comes on while driving
I do have a help desk service over the phone if u can't figure it out
I can wire Cressidas in my sleep with one hand tied behind my back

[wilbo666]

This might help (if you haven't found it already). Will help more if the 2JZGE is from a JZA80

http://wilbo666.pbworks.com/w/page/4...0JZA80%20Supra

Also
http://wilbo666.pbworks.com/w/page/4...CV%29%20Wiring

Cheers
Wilbo

[cressidways]

Thank you so much dumbass (that sounds weird) , il have a good look into that stuff and if I do get stuck il let you know, and Wilbo, iv used your pinout a few times, very useful u just can't seem to find any cressida pinouts!

Cheers guys thanks

[cresslux]

when you turn the car off the ecu keeps the main efi relay on for a few seconds to reset the idle control. you will here it make a ticking noise.

[dumbass]

Check inside your ecu incase they let the smoke out of it

[cresslux]

its really hard to put back in.

[dumbass]

u can get a can of smoke from jaycar
just lift the lid on ecu and spray it back in there