Need a throttle position sensor

[paanta]

I can't get the 5 stomp test to work anymore, so I assume it's the fault of the switch. My TPS is showing something like 50 ohms at WOT as opposed to 4 ohms for the idle switch. That's not good enough for my multi-meter to consider it 'continuous' and I bet the ECU feels the same way. Odd thing is, the thing looks brand new as it is.

PM if you've got a spare you'd be willing to sell me. This is for a '91 535i/5-spd.

Thanks!