tps interchange

[htchbck]

I'd been having an intermittent problem with my festiva (90L Plus auto, B3) randomly cutting out and RPMS bouncing up and down like it was hitting a fuel cut off at various engine speeds between 2K and 3.5K... I traced the problem down to either a faulty TPS or TPS plug (if I wiggle the plug enough the problem goes away. I am going to the JY saturday and they have 4 aspires there (three autos) and I was just going to grab a couple of spare sensors and plugs. I'm also going to be getting another extra one for an elderly lady I know who drives an auto festiva that is doing the same thing mine is doing, and I'm guessing it is the same problem with hers. However, when I look them up at the auto parts sites they say the festiva will interchange with the other b6s (323, old tracer) and b8/bps (proteges, egts) but not with an aspire. Anyone know for sure how accurate this info is? I'm sure I can get one of the b6/b8/bp sensors but just don't wanna get the wrong thing.

thanks!

[25Horseplay]

Maybe you can post your findings as to which ones interchange and we can sticky it in the repair forum.

[SIBladerunner]

the problem is that according to the festiva wiring diagrams on alldata the TPS is a swtich not an actual sensor, but interesting that the problem goes away when you jiggle it.

[htchbck]

well I think its a 3 position switch, "closed throttle", "in between", and "wide open throttle". At closed throttle there is no problem, idles fine, its in the mid range that it acts goofy

[fastivaca]

The photos aren't there but perhaps this post will help...

http://www.fordfestiva.com/forums/showthread.php?t=8402&highlight=throttle