As said can get red 4wd tps, the 2wd is a straightforward linear pot, it has NO switch at idle unlike the PF09 4wd one, which has a dedicated idle position.
It does NOT always show up when they have a flat spot on the tps, this generally occurs just above idle as most used area, and can play havoc, I had a murmur that was there all the time on the L6 ecu, couldn't detect a flat/missing spot anywhere, it wasn't until I switched ecu's that the slight murmur became a serious issue.
With the new ecu not wanting to pump fuel in like the L6 did, the miss was so bad it couldn't even be driven through on the rollers with ZERO load, of course a brand new £25 pot and 2 minutes on the laptop had it all lined up with the new one, the part I used was a common as much universal tps that can be got anywhere, £25 brand new on the spot with no cossie tax!!
tabetha