R32 Gtr Vipec Ecu, Awd Problem With Tps Help.

[NismoSTune]

Hi guys, I'm using a VIPEC in my R32 GTR and since the install there's been an intermittent problem with my Atessa which brings up the code for TPS fault. I've read a post by Dirtgarage saying that this problem had happened and was possible caused by the ECU creating a voltage drop (also with an Autronic) and the correction was a voltage buffer or some sort. Could anyone get into detail about what the fix is? I'm getting tired of losing my AWD mid corner on a hard drive and having to turn the car off to reset the Atessa..... Please help.

[NismoSTune]

BUMP!

[fletch rb30]

i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

[ali-turko]

i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

tps need to be set at 0.38-0.40 when throttle closed

[ali-turko]

i think tps is 0.5-5v.

awd ecu needs 0.5-3.5v for tps signal. (possibly 0-3.5v, i forget)

You need to find somebody than can make you a circuit to read the tps voltage and output the lower voltage signal to the awd ecu.

It can be done with a simple op-amp circuit with 0.7 gain.

tps need to be set at 0.38-0.40 when throttle closed

[9krpm]

(also with an Autronic) and the correction was a voltage buffer or some sort.

Nil problem with my 4WD since I switched to an Autronic