2jz S2000 *UPDATE*
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I Drove the car for the first time Saturday. Everything seems well we are working on getting full control of the s2000 digital dash. We are having trouble with getting the speed to read. We thought it would be an easy wiring job because the schematics for the speed sensor on the v160 are very similar to the speed sensor on the F20c Trans. However what seems easy at first turns into a headache very fast.
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Here is a small update.
The power steering is now functional. Many do not know the S2000 is one of the only cars along with the NSX that use a Fully Electronic power steering rack. This rack has no fluid inside and is ran with a micro processor. Inputs from the steering sensor are digested by a microprocessor control unit that also monitors input from the vehicle's speed sensor. The sensor inputs are then compared to determine how much power assist is required according to a preprogrammed "force map" in the control unit's memory. The control unit then sends out the appropriate command to the "power unit" which then supplies the electric motor with current. The motor pushes the rack to the right or left depending on which way the voltage flows (reversing the current reverses the direction the motor spins). Increasing the current to the motor increases the amount of power assist.
The vehicle is now controlled an functional through 2 ECU
The power steering is now functional. Many do not know the S2000 is one of the only cars along with the NSX that use a Fully Electronic power steering rack. This rack has no fluid inside and is ran with a micro processor. Inputs from the steering sensor are digested by a microprocessor control unit that also monitors input from the vehicle's speed sensor. The sensor inputs are then compared to determine how much power assist is required according to a preprogrammed "force map" in the control unit's memory. The control unit then sends out the appropriate command to the "power unit" which then supplies the electric motor with current. The motor pushes the rack to the right or left depending on which way the voltage flows (reversing the current reverses the direction the motor spins). Increasing the current to the motor increases the amount of power assist.
The vehicle is now controlled an functional through 2 ECU
learn something new about my car everyday.
Joined: Mar 2004
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From: Decatur, GA
[QUOTE=PRS2K,Feb 6 2007, 08:53 AM] Here is a small update.
The power steering is now functional. Many do not know the S2000 is one of the only cars along with the NSX that use a Fully Electronic power steering rack. This rack has no fluid inside and is ran with a micro processor. Inputs from the steering sensor are digested by a microprocessor control unit that also monitors input from the vehicle's speed sensor. The sensor inputs are then compared to determine how much power assist is required according to a preprogrammed "force map" in the control unit's memory. The control unit then sends out the appropriate command to the "power unit" which then supplies the electric motor with current. The motor pushes the rack to the right or left depending on which way the voltage flows (reversing the current reverses the direction the motor spins). Increasing the current to the motor increases the amount of power assist.
The vehicle is now controlled an functional through 2 ECU
The power steering is now functional. Many do not know the S2000 is one of the only cars along with the NSX that use a Fully Electronic power steering rack. This rack has no fluid inside and is ran with a micro processor. Inputs from the steering sensor are digested by a microprocessor control unit that also monitors input from the vehicle's speed sensor. The sensor inputs are then compared to determine how much power assist is required according to a preprogrammed "force map" in the control unit's memory. The control unit then sends out the appropriate command to the "power unit" which then supplies the electric motor with current. The motor pushes the rack to the right or left depending on which way the voltage flows (reversing the current reverses the direction the motor spins). Increasing the current to the motor increases the amount of power assist.
The vehicle is now controlled an functional through 2 ECU
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Originally Posted by timg,Feb 7 2007, 04:19 PM
Couldn't one AEM EMS be programmed to handle all of that? The only complex thing the stock S2000 ECU does is control the engine. Everything else is very simple which is why I think the Supra EMS could be used to do it all. Am I missing something?
Otherwise I like the whole project!
Tim
Otherwise I like the whole project!
Tim
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From: Roseville, CA
Gawd, could this be the coolest Frankenstein ever? Survey says...YES!! Mad props to you and all the time you have no doubt spent on this. It would be safe to call you a visionary for accomplishing this. So uh, where are the vids? 
