KTM200-280zxt

Hey,
I found a 240sx in the junkyard next to my work today and It happened to have a throttlebody on it which they wanted $35 for. Im in need of one quick because Im starting to install Megasquirt. My only question is which ones do we use on our cars?? It was a SOHC so it was either a 89' or 90'. I thought the TPS was in a different place?? If so which one should I be getting.

Thanks in advance\
Rob

Bleach

for the factory ECU you want the SOHC throttle like you found
For Megasquirt, you want the DOHC from 1991+

nismo619

i accadently bought a 1996 240sx throttle body and tps sensoer for 25 bucks from a local race car group called " out for destruction " in my home town .. i dont need the TPS i dont think...

NismoPick

Accidentally bought? I don't think I've ever heard anyone say that (outside of Judge Judy's Court).... How do you accidentally buy something? And you should still use the TPS.

nismo619

to nismopick how do i still use the tps ? witch wires do i hooked up ?

KTM200-280zxt

hey thanks for the help Bleach. That really sucks.. So there is no way I could use that one with MS? I didnt really spend time to look at it ( I was on my lunch brake) is it that the TPS itself is different or just the location?

Thanks
Rob

NismoPick

You plug in the 280zx TPS wiring plug to the 240sx TPS plug. I believe Bleach advised to get the DOHC (KA24DE) TB for megasquirt, because it comes w/ the spare pig-tail connection.

KTM200-280zxt

Thanks for the help Nismo. Sorry for my stupid question.. but does that mean I can use it? will it work without the spare pigtail connection?

Thanks for your help
Rob

NismoPick

Yep... the pigtail connection is for aftermarket fuel computers.

81 Black L28E

i have one from a 89 sohc and it has the pig tail

NismoPick

Well... that just throws erthing off!

Bleach

I was thinking the SOHC TPS on the KA had a 3-position switch (like the Z) where as the DOHC had a throttle position sensor which actually told the ECU how far open the throttle was... not just idle, cruise, and WOT. Megasquirt needs the more accurate readings... right? no?

maybe you can use the SOHC throttle body, but you'll want the later 240SX TPS to stick on the side... if you can even do that