CIS to EFI throttle body mod for TPS

[Alan Cottrill]

...

[Alan Cottrill]

I modded my throttle body to use a tps with my megasquirt setup.

here's the parts I used. I made the adapter plate from scrap aluminum.


I drilled and tapped the throttle shaft and the 2 holes in the throttle body used to mount the bracket.


the actuator key is a #10 thumb screw. After I ground it down to fit in the tps I put a nut on it for a lock nut. I had to do some fiddling around to get the angle of the key just right to get full throw on the TPS. Once I got it adjusted I tightened the nut to lock the screw in place.


Once I had prepped the throttle body all that was left was to cut and drill the adapter plate and bolt it together.


after everything was fitted I cut down the bolts that hold the TPS to the plate.

[emcon5]

Outstanding.

Tom

[89turbocabmike]

Thanks for sharing Alan! I wondered how the TPS was attached to the throttle body, is this normally how it is done or your version? These pics go into my EFI project file.

[Alan Cottrill]

Thanks Tom!

I'm going the DIY route with my megasquirt install so everything I'm doing is one off.

tbitz has a really nice kit he sells that doesn't use a TPS, it uses MAP for acceleration enrichment.