drive by wire to drive by cable

[tfmatt]

I have a 4.7 equipped with a drive by wire throttle body, im putting it in a T100 prerunner and i'd rather have my foot phisically connected to the throttle.. i tried searching but didnt come up on anything, has anyone done the conversion?

i did some research and i found that the cable TB has 4 wires going to it from the ECU: VTA, VTA2, VC, and E2 which i believe are used for the throttle position sensor.
the drive by wire TB has those same 4 wires plus E+ and E- which are used to actuate the throttle motor.
the accelerator pedal has 6 leads that go to the ECU: VPA1, EP1, VCP1, VPA2, EP2, VCP2. by the diagram i have it looks like theyre used to send different voltages according to the postition of the pedal through the various wires to get a acceleration value.
if i were to change the TB i should still be able to use the existing TPS wiring to hook up to it but my concern is if i have no throttle input from the pedal going to the ECU will it still run correctly? are there any systems tied into it like VVTi or would the ECU not deliver enough fuel or the correct timing on acceleration?

 

[sideshow]

on the gm fly by wire systems if there is any probs witht he drive by wire
the engine wont rev
i guess if u crack the throttle manually it will rev hi but not sure how good
drive by wire has to be 100% for ecu to work properly

so i guess toyotas ecus should be similar
so i would recon changing any of the driv by wire stuff might result in ecu going to limp mode

if u want to go cable throttle then throw the std ecu away and fit afetrmarket
drive by wire is not that bad is it

 

[tfmatt]

on the gm fly by wire systems if there is any probs witht he drive by wire
the engine wont rev
i guess if u crack the throttle manually it will rev hi but not sure how good
drive by wire has to be 100% for ecu to work properly

so i guess toyotas ecus should be similar
so i would recon changing any of the driv by wire stuff might result in ecu going to limp mode

if u want to go cable throttle then throw the std ecu away and fit afetrmarket
drive by wire is not that bad is it

well the drive by wire systems work fine if youre just driving around normally, but im gonna be beating on this thing in the desert and ive heard they can start lagging and just dont feel good. but i really have no experience with a drive by wire system, so maybe someone can give some input on how well it works for them?
problem is i just bought the factory ECU, and i dont have the electronic pedal which i would imagine is a bit pricey.

 

[sideshow]

What year and model is the motor out off
Most drive by wire motors are late model
And most late motors have security in them
Which if yr ecu does have yr pretty much stuffed

I've done many drive by wire setups into big 4wd rally and bash
Vehicles running gm ls2 and ls3 motors and never had a prob
I just supply two pedals which are very cheap
I'd hate to see what Toyota charges

Anyway I doubt u will find anyone has played with Toyota drive by wire
As all drive by wire 1uzs have security so no one on has has actually
Wired up the factory ecu due to this
Maybe u can be the first

 

[tfmatt]

What year and model is the motor out off
Most drive by wire motors are late model
And most late motors have security in them
Which if yr ecu does have yr pretty much stuffed

I've done many drive by wire setups into big 4wd rally and bash
Vehicles running gm ls2 and ls3 motors and never had a prob
I just supply two pedals which are very cheap
I'd hate to see what Toyota charges

Anyway I doubt u will find anyone has played with Toyota drive by wire
As all drive by wire 1uzs have security so no one on has has actually
Wired up the factory ecu due to this
Maybe u can be the first

what exactly do you mean when you say the ECU has security?

my engine is a 2UZ from a 2005 tundra

 

[sideshow]

the ecu has immobiliser in it

the ignition key talks to the key reader
the key reader sends signal to ecu or to ecu immobiliser
which then sends signal to ecu saysing ok to start

if u dont have this then ecu wont fire the injectors

most late model carfs has this
and late model 1uzs have this and they r 2000 model
so check this first if u plan to run the motor in another car
as if it has security u will need this all hooked up and linked up etc etc

im not sure on the late model tundras but im guessing they would have it
best to look into this first

 

[sideshow]

hey tfmatt
looking thru the diags for 03 to 06 tundra with 2uz it doesnt have an immobiliser in it
i guess they only fit the immobilisers in expensive luxury cars
the 2uz we have here in australia is in the landcruiser and they have immobiliser in them so when i wire them up i always get the complete wiring from behind dash to the headlights

 

[tfmatt]

hey tfmatt
looking thru the diags for 03 to 06 tundra with 2uz it doesnt have an immobiliser in it
i guess they only fit the immobilisers in expensive luxury cars
the 2uz we have here in australia is in the landcruiser and they have immobiliser in them so when i wire them up i always get the complete wiring from behind dash to the headlights

yeah i just went through some diagrams and didnt see anything like that. im gonna see if i can find a e-pedal if not i have the tables for the voltages i mentioned earlier. im thinking if it comes down to it i can get a new shaft for the butterfly made so i can link that up with a cable, and use either the TPS or a petentiometer as a dummy pedal to send the signals to the ECU as i open the throttle.

check it:

 

[sideshow]

cool
see how u go
as all of this is trial and error
i have abit of experience with holden fly by wire
prob done 50 motor looms and ecu flashes for them
but not sure on toyotas
but just rmemeber the tps normally 2 in pedal and 2 in throttlebody has to be exact
otherwise throttle will close but if u have cable it will be open so ecu might go into limp mode so not sure what wil happen its just do it and see