Throttle body switch and ....positionpotentiometer. Please help!
 

Hi,

This morning, I was working out the plan to integrate in - or built nearby the throttle body switch a potentiometer. To read the throttle position I need for a Megasquirt motormanagement. To my surprise, the throttle body switch as I found it in the manual was uprated. There was only one switch connected to the three pin connector. Also I found a potentiometer integrated, which was connected with a three wired cable to a extended connected. It wasn't a diy thing, that's for sure.

Is it correct that this switch en potentiometer integrated device was made for the S12 (mine is of the year '86 - dutch car). There is a ground and 9,2 volt available on the connector (pin 1 and 3 or vice versa). Where is the middle wire going to? ECCS pin number? Or other device?

Please let me know. Thanks in advance, Frank. :rolleyes:

im sure our ones here in the uk are just an on/off switch, with 2 wires connected.

The addition lead with a 3 pin plug suggests its an S13 item which uses a potientiometer style TPS in addition to the closed idle switch type.

Have a look at the easily downloadable S13 manual for the wiring

You're right. That's the one. Now I have to find out were the middlewire is going to ;)

Tnx for the reply. Bye Frank.