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Location:
Sunshine Coast
Registered:
January 2005
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1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 09:23
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Hi everyone,
I have a problem. i killed the 1ggte in my Z20 and am partially the way through my motor swap to the 1jz. Now as to my problem, the motor is in bolted up and all seeming fine. When you wind it over by hand the compression sounds even and it holds oil pressure so that is a good sign.
the dilemna is with the wiring.
the motor i have is from a JZZ30 soarer and i was told that the best setup for the gz20 was the JZA70 setup as the crossmembers change over for the motor swap and voila wiring is easier when you are trying to hybridise the jz into the gz shell. Now i have had the car at an auto sparky workshop here on the sunshine coast for 2 and a half weeks and they managed to get 6 wires connected by snipping my old loom from my 1g and putting those connectors onto the jza70 loom after tracing wires one by one. i thought that the jza70 was the easiest loom to splice into the GZ20? ? is that so? shouldn't it be a little easier then tracing every wire through? am i being royally shafted here or what?
the problem seems to be the fuel injection relays and all that sort of crap. the auto sparkies i first had the car at did have a bastard of a job with me only being able to supply them with wiring diagrams for the jza70 loom and not the car. and after them not even looking at it for a week and a half i took the car back off them and took it back to my mechanics to rest and they tried to have a go at the wiring but it seems to be totally out of their league as well.
it is now at another auto sparky workshop here on the sunshine coast and i asked him to have a look at what had been done ( or not done as the case may be) and supplied him with the jza70 loom diagram and the GZ20 wiring diagrams (thanks to a mate Dale) and he is telling me that it is going to be a couple of weeks and about $1500!
now few questions:
am i being shafted here?
am i going about this the right way? is there another loom that would suit the car more? how else can it be done?
would a soarer loom and ecu be a better option? then would that only leave the dash to be wired? the loom plugged up to the motor fine and of course i had the correct ecu it is just the wiring into the car and/or dash that seems to be killing these guys.
what should i do? the conversion has been in the works for 2.5 months now. the car has been off the road for 7 months. i just want my car back and i am sick of catching lifts and borrowing mates cars. any help at all would be GREATLY appreciated especially from people who have done or had this conversion done before.
thanks in advance
matt
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 10:08
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Either loom is as easy as each other.
If they haven't wired up a Toyota before, its a challenge.
Having the old motors wiring diagram helps, but its not necessary.
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 12:50
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thanks mate so stick with it then hey and just pay up?
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 12:56
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Either that or take the car off them and get someone who actually knows what they are doing.
Its a 2-3 day job tops.
It can probably done in 4-6hrs by someone who knows it well.
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Location:
Pine Rivers QLD
Registered:
April 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 13:14
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hey CrUZsida, in my vast wisdom of wiring my car, do you reckon i could do his? as we know each other and i think its crazy talk to pay that much.
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Location:
Sunshine Coast
Registered:
January 2005
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 14:11
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It depends how you've wired yours up Gav.
If you've wired up the EFI fuse, EFI MAIN Relay etc etc correctly as per the diagrams, then there is no reason why you couldn't do his.
If you have just wired things into random places, and lo and behold its worked, then maybe not.
On the flip side, even if it takes you a week to do properly, I'm sure Matt will provide you with lost of beer to make sure the job is done properly.
Another thing to point out is that the JZA70 loom is quite different to the JZZ30 loom.
If you are using the JZZ30 loom I suggest a serious read of this thread
http://toymods.net/forums/showthread.php?t=247
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Location:
logan river brisbane
Registered:
July 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 15:32
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My friend IMHO you are definitely going about it the wrongest possible way.get your car out of there asap.
Never leave a car [or anything] anywhere for any service without a firm quote.
1.you will have an agreed cost
2.you will know when it will be finished
3.you and the service provider will both know what the expected outcome of the job is.[an agreed result]If the agreed result is not forthcoming then neither is the agreed payment forthcoming.
Basically,a shop that has no idea will not enter into this type of agreement,which tells you what? [they have no idea]
There are 2 people around who know what they are doing and make a living out of it that I know of-Jim of sideshow performance wiring and Grant of sixworks.search this site for more details of these guys.I think its worth about $700 last time I got a car done which included ABS and Cruise on a manual 1J into 92 Cressida.Jim did that one. Best of luck.
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Wed, 26 October 2005 19:08
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ok well then i need some contact details for these people.. PLEASE? whereabouts are these businesses located? which is the better one to go to?
anyone?
cheers
matt
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Location:
logan river brisbane
Registered:
July 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 02:11
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Matt.you have the names,sixworks and sideshow.
Click on the members tab,[top right of the page next to search]enter the members name in the login box and click on the search result for their respective email address etc.Sideshow is in Sydney and travels by arrangement [he did my car in brisbane] and Grant is in newcastle[sixworks] and doesnt travel to my knowledge.
In your predicament I would suggest phoning all nearby shops that tune turbo cars and ask who they know that is familiar with wiring 1J conversions.Sorry i cant help further.
Try asking mk3supra [mick] if he knows anyone.Hes on the sunshine coast.0408214762.Best of luck.Pete. 
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Location:
Brisbane
Registered:
May 2002
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Location:
logan river brisbane
Registered:
July 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 02:28
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Good on you Wilbo!
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 05:33
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thanks for the offer wilbo i need all the help i can get.. the car has the W58 manual in it.
if you are on msn mate you can add me on nitnat79@msn.com
any other offers? 
cheers
matt
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Location:
Pine Rivers QLD
Registered:
April 2005
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 10:44
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i think i am going to have to change your name to my hero NDGCPR
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Location:
sydney
Registered:
March 2003
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 19:28
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you could seriously get it done in a day?
well maybe it may just come to that mate. NDGCPR is having a look at it this weekend then we'll decide on where the car goes from there.... keep your eyes on this thread mate.
cheers
matt
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Location:
sydney
Registered:
March 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Thu, 27 October 2005 20:55
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piss easy only prob is im in the usa till december from this monday
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 03:05
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so i take it saturday and sunday are out? 
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Location:
sydney
Registered:
March 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 06:50
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i can come up on sunday but ill have to charge 3000 bucks heheheh
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 08:30
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lol hahahaahhahaha umm no thanks mate
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Location:
sydney
Registered:
March 2003
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 08:49
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sunday double time heheh
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Registered:
October 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 13:02
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Crikey i was only up in the Gold Coast for Indy last week....
Umm i have full JZZ30 diagrams if someone wants a copy...
I could steer you through it but it's hard without seeing the car...
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Location:
Sunshine Coast
Registered:
January 2005
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Re: 1JZ in GZ20 soarer i need wiring help/advice
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Fri, 28 October 2005 20:39
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well thanks mate, i allready have the jzz30 diagrams i believe, and the motor is not the problem as it is wiring the motor into the car that seems to be causing the dramas, and it has a JZA70 loom not the JZZ30. thanks for the offer tho much appreciated!
cheers
matt
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