TPS compatability

[Reeves]

I think my TPS is going out.. I used to have reallly screwy idle with "floating" RPM's.. I replaced the TPS with one I found at the junkyard and the problem was 80% solved.. It still screws up from time to time though so I'm thinking the one I installed is also a bit screwy..

Can I use a TPS from any M20? I found one from a M20 b27 at the junkyard (I have a b25), would that work? The last 3 numbers on the cover are 301 I believe.. It was also filled with a crapload of oil and some water it looked like, but I cleaned it out with some carb cleaner.. Think it'll work?

I'll probably end up buying a brand new one at some point, but I plan to upgrade to the M30 throttle body at some point and I don't know what TPS I'm going to have to use with that. I definitely don't want to spend $60 on a brand new TPS now if I am just going to use a different one down the road.. Do you use the M20 TPS on an M30 throttle body??

[jlevie]

Oil or water will kill the switches in the TPS. The junkyard part might work, but it would be best to get a new one

[Reeves]

I can hear the switch clicking so I think it's working correctly.. Ill just keep it as a spare since I got it free anyways. Mine is working pretty well but I'm getting a Miller MAF in the mail soon and apparently they are much more sensitive to a faulty TPS.. I guess we'll see what happens.

Any idea what TPS you use when upgrading to M30 throttle body? I would think the m20 tps but I need to make sure.