dk944s2

Hi guys,

Will full-throttle power be affected if TPS is totally disconnected? The reason I ask is that mine vibrated loose (plug was missing the metal clip). It's safety-wired on now, with a much-improved idle and what feels like a stronger top-end charge. (It certainly could be just my imagination!)

TIA, all you Motronic wizards!

Skip

For the S2, yes - definitely. The TPS has both the closed and WOT switches.

dk944s2

Thanks, Skip....that was a quick reply!!! I really appreciate it.

Jeff928S4

Where is the TPS on the S model cars? ...and how hard is it to change?

944S Boyeee

Skip

Under the throttle - you must remove the throttle to replace and adjust the TPS. Not hard at all.

Good Luck!

Doug944s2

The TPS is really easy to get to on an S2 without removing the throttle body; I'm not sure about an S. I know it can be buried on other models. It's a thin, square black box about half the size of a deck of cards; mounts with 2 screws to the end of the throttle shaft opposite the linkage.

Connecting it and adjusting it correctly (so you can hear a little click from the microswitch within as you just crack open the throttle) helped my idle immensely...it's now rock-stable at about 900 rpm.