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Registered:
January 2003
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man ecu 1jz conversion
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Thu, 18 December 2003 06:08
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If i have my auto ecu 1jz out of a jzz30 wired to my manual ma61, thus running in limp mode.
Does anyone know if it would be difficult, ie costly and/or time consuming to convert this to a jza70 manual ecu.
Anyone with any knowledge or experience in the similarities and differences of the ecu's or experience with such a change your advice would be appreciated.
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Registered:
August 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 06:10
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people of interest to talk to:
JAZE
DRAVEN
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Location:
sunny coast, qld
Registered:
October 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 06:47
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SLYLUX
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Location:
Brisbane
Registered:
November 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 08:13
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I am interested in this also, I would suggest that there is surely a way around it without going to the hassle and incredible expense of converting the entire ECU loom to a different plug setup.
Juts a matter of finding it.
Perhaps go tot he ALSC Forums - I don't know the exact link, but go to www.planetsoarer.com and click on "ALSC" on the left side.
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Location:
sydney
Registered:
March 2003
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 08:47
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i am recieving some speed sensor thingys soon
hope to do some testing of them
they can generate a speed signal which is needed for the ecu and stil be able to run a speedo cable
u should be able to use the auto ecu and trick it
somehow
it cant be too dificult
theres a speed signal
park and neutral which shouldnt matter
2nd speed signal which should be able to be tricked
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Registered:
June 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 20:04
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My 1JZ runs just fine on the auto ECU with a W58 and no speed sensors etc... hooked up. No engine check lights etc..
If it is running in limp mode now, it will be an animal running properly. And yes I do know that it isn't.
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Location:
Newcastle, NSW, Australia
Registered:
May 2002
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Registered:
June 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 21:05
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That is exactly what you told me when I did mine.
And it runs Fine.
Thanks Grant.
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Location:
Wollongong
Registered:
May 2002
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Re: man ecu 1jz conversion
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Thu, 18 December 2003 23:22
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I'm converting a JZZ30 from auto to manual within the next week or two. Hopefully I can get it running off the auto ECU, but I will have a backup M/T ECU just in case. I will report the results after the conversion is complete 
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: man ecu 1jz conversion
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Fri, 19 December 2003 00:52
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fwiw - the manual ecu plugs straight in (I was using supra or chaser cut/ecu)
the manual ECU gave a bit better economy, and possibly more power (but I cant be sure with the power - that was subjective, and I was expecting more 'cause of the swap)
BUT you're going from jzz30 to jza70 ecu - so it would be worth checking the plug patters (which I have no idea about).
Mine was never running that badly off the auto ecu... still put just about everything it came across to shame
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Registered:
June 2002
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Re: man ecu 1jz conversion
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Fri, 19 December 2003 02:18
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Back to the original topic.
The JZA70 has a 5 plug ECU and the JZZ30 has a 4 plug, both of differing pin configurations.
It would be time consuming to chop all the wires and connect them to the different plugs (presuming you have the plugs).
And costly if you paid someone to do it.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: man ecu 1jz conversion
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Fri, 19 December 2003 02:31
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there ya go - listen to the man who knows stuff
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Location:
Newcastle, NSW, Australia
Registered:
May 2002
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Re: man ecu 1jz conversion
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Fri, 19 December 2003 03:10
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I think that the actual pins are the same so it may be feasible to remove the Soarer plug and repin a JZA70 ecu plug rather than cut and rejoin wires. You would still need to locate suitable connectors though.
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