IS200 and 3UZFE

[dumbass]

I think they r around 1500 or so once they finish them

[George]

in my projects, I use ATECU (atecu.ru), it's about $300 shipped to me. It's proven to be capable of controlling A650 and all sorts of A340, A430's . Manufacturer claims it's also capable of 6spd control but seems like no one yet tried the feature in real life

[Slipper86]

think the factory one is good for me

[dumbass]

hey George are they easy to program those ones
they are good price

[ecko]

Dont bother with IS chassis, Get GS if you want space, IS are too small inside

[Slipper86]

gs too big for me.. i dont like big cars just big power

[George]

dumbass: not really, just need to realize what you want to do and how a particular transmission works

[cambelt]

There is 9 solonoids in a a761 6 speed auto , lots of fun and games .
I have a semi stalled project using a A761 auto and are planning to use the PCS trans ecu if I can .
I had a running half cut UZS 186 crown and couldn't seem to make it shift gears using just the speed sensors in the trans so guessing it needs the abs speed signals thru the can bus .
When the shifter was in man mode I could change up and down gears tho .
It would be nice to find a engine ecu that had enough ins and outs to control the trans as well , closest I've found so far was the vipec v88 .
Dave

[Slipper86]

so cambelt are you saying that I wouldnt be able to run the A761 at all in a is200? what is the "can bus" that people mention. the is200 abs wouldnt replace Crowns?

[George]

cambelt, I ran successfully 4GR-FSE+its native A761 ('2004 Mark X GRX120) in a Mazda RX-8. The trans shifts fine in both manual and auto modes. Needs no additional signals (though Mazda equipment does, but that's another story)

[cambelt]

Not saying it can't be done just don't think anybody's done it using aftermarket control . 9 solonoids is getting to upper limit of most electronic controls I looked into .
George that is promising news that the 4gr shifted gears ok , Maybe running a half cut with no load may have caused the lack of gear shifting but I was not about to spend 30 odd hours wiring it up only to find it won't shift or has some other silly problem so I've shelved the idea for the minute .
I've heard of 5 sp auto 3uz combos working ok and think even dumbass has done one before .
Dave


Vehicle Details

[Slipper86]

this security system that lexus has on the later model 3UZ. when did they bring it in and what is the official name of it.. Im trying to track down a 1/2 cut in the right era

[George]

1depends on market , chassis and options installed
2no official name
3 transponder type is texas instruments 4c (simple and straightforward) for gs430 and all cars with 1uz vvti. So GS430 is the only 3UZ car having rather simple security system

the rest use texas instruments crypto 4d

the 4d's used in toyotas are known as 4d-67, but that's not official transponder name

keyless start cars still use a 4d transpnder as a backup

all said applies only to the cars equipped with 3uz from factory

[Slipper86]

sc430 6 speed box?

[George]

Haven't seen one. Some were probably without keyless start. Try to find one of them. It would use 4d transponder which is somewhat tricky but not as much as a complete keyless system