The TPS just has two sets of contacts - on or off - zero or infinite resistance - one for idle and the other for WOT. That's all it is!

IIRC the idle switch should be closed (zero resistance) with the throttle in the idle position. If it doesn't the ECU will not know that the throttle is in the idle position and will not command the ICV to maintain proper idle speed, so the idle speed will typically be high, which was the problem I had unless I snapped the throttle closed.

Trace the TPS pigtail to the connector on the top of the inlet manifold, disconnect it and check pairs to determine which is idle and which is WOT and check both for proper function. Do this with the engine OFF! The WOT switch tells the ECU to go into open loop mode and richen the mixture for maximum power. You can check resistance to ground on the engine harness side to determine which is ground - probably the center lead. Then check the pairs to determine which is idle and which is WOT. It shouldn't take much effort to figure would which pairs are which function. Exercise the throttle repeatedly to make sure each function is consistent. If the idle switch does not function or functions intermitently, snap it closed a few times to see if it works.

High idle speed will not damage the converter, but if you do a lot of stop and go driving it could cause the trans fluid to run at higher temperature, which will shorten the fluid's useable life, and it could also affect brake pad life.

Duke