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Toymods » Tech & Conversions » 1G-GTE Twin Turbo Auto to Manual Conversion

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dispatcher
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Malaysia,Kuala Lumpur
Registered:
July 2002
1G-GTE Twin Turbo Auto to Manual Conversion Mon, 16 June 2003 15:42 Go to next message
Hi ya all, as the topic suggest, was thinking how difficult is this if possible. Understand that the ECU reads from the G/Box as well. IF manual conversion is done..Will the ECU go hay wire.
And Cut out or Speed limiters..are they located in the ECU ? or Tranny..anyway to bypass these. ??

cheers
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Grant
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Newcastle, NSW, Australia
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May 2002
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Mon, 16 June 2003 22:09 Go to previous messageGo to next message
A manual conversion will generally have no effect to the ecu. Out of the 20 or 1G harnesses I've done, only 1 caused a problem without a speed signal. This was simply fixed by placing a single wire read-switch type pick-up on the trans tunnel and a magnet on the tailshaft. If you can pick-up a manual ecu though, you will notice a performance gain as the manual ecu's are mapped differently.

As for the speed cut, this operates off the primary speed input. If you don't need the speed signal in the first place then you won't have the speed cut problem.

[Updated on: Mon, 16 June 2003 22:11]

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dispatcher
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Malaysia,Kuala Lumpur
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July 2002
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Tue, 17 June 2003 15:43 Go to previous messageGo to next message
Say thanks so much for the info. Will work on it right away.
Cheers.When you say speed signal, input as in RPM ? or KMH ?
Do i just cut the leads ?

cheers
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Grant
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Newcastle, NSW, Australia
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May 2002
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Tue, 17 June 2003 21:46 Go to previous messageGo to next message
It's km/h converted to a 12 volt square wave. Either cut the wire or just don't connect it.
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punkdefender
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Location:
Dandenong/VIC
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May 2002
 
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Wed, 10 December 2003 01:57 Go to previous messageGo to next message
I gotta gen 1 auto ecu, would a gen 2 manual ecu work when I do my auto to manual conversion?
Cheers
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thechuckster
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Brisbane
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February 2003
 
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Wed, 10 December 2003 03:03 Go to previous messageGo to next message
i thought that the ECU for auto boxes ran a safer (richer) mix if the gearbox didn't respond with a speed signal?

or does the ECU only use the speed sensor for the speed limiter? I think the gearbox ECU needs a speed signal to know when to engage the lockup (e.g. no point trying to engage overdrive and/or economy modes if you're doing 20kmh in 1st).
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Soarer
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Location:
Wollongong
Registered:
May 2002
Re: 1G-GTE Twin Turbo Auto to Manual Conversion Wed, 10 December 2003 04:07 Go to previous message
Grant, have you had much experience converting the A340E auto to R154 5-speed on a 1JZ-GTE ?
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