should i buy a jeep wrangler with a bad tps ?
i found ajeep that seems like a good deal, and the guy is willing to fix the tps before i buy it, but could there be a larger cause to the problems? or just a minor fix?
it's very common for the tps to fail. their cheap and easy to fix.

mine went bad when my jeep was only 2 years old. i got a replacement one for around $40.
i don't think you're going to be able to fix it. can you drive the car? have it towed to a shop and get some help--you have a serious problem or several problems. take this to a professional that can properly diagnose this problem, this approach you're taking is going to cause more problems and cost much more than if the problem was diagnosed prior to replacing parts.
http://repairpal.com/buick-repair-in-new-castle-delaware If you can see the slight warp, one or more solder joints would likely have developed cracks (i.e. broken connection). Don't even think a service shop would recommend trying to get it fixed. In the middle of the TT youll Find a C-Clip It needs to be Removed before the Platter can be removed,You either have a Broken Belt,Or the Grease in the Guide is Old and must be Cleaned out and Relubed hi everyone, just to close this topic, i could get a proper power supply and in fact it was the problem..

thaks everyone for your time and help ! the clutch might be smelly, but is it slipping or doing anything else untoward. clutches are a regularly reported problem on one-tonne utes, which suggests most are borderline in capacity. if there is a problem with the functioning of the clutch, approach mazda again about replacing it. if there isn't a problem think about replacing the clutch with a heavy-duty one that's more capable of handling your towing needs. it looks like you are right, this appears to be an issue. i will make sure that it gets fixed soon. only thing i can think of is to maybe reflash the firmware. not very hard to tell, you have one with a caution so that is a good sign there is an issue with the drive. 

does not mean you need to replace it right away, that is what backups are for. use the drive, if it fails replace it and restore from backup. or contact the drive vendor support and see what their criteria for a warranty replacement is, do the same thing if they exchange it, restore from backup. if you don't have backups today is a good time to start. there are so many things that can cause rough idle, can you give more information? did the car recently overheat? is there any fluids leaking on the engine? are you getting any smoke or steam from the exhaust? when checking for steam, remember to wait until the engine has run for awhile as condensation can build up in your exhaust during the night. if you cannot tell if it is smoke or steam, hold a blank sheet of paper behind the tail pipe, if it is oil smoke, then oil dots will show up on the paper.

some things you can do and check;
check the spark plug wires, make sure they are tightly connected and not chaffed, broken or burnt.
check your pcv valve for excessive oil or clogging, (it will be in a rubber housing or hose leading from your valve cover to your throttle body/carburetor)
i don't know the engine setup in that model, but if you have a distributor cap, check it for cracks and wear, also check the rotary cap.
check all rubber vacuum hoses on the engine for cracking.
if you can afford it, change the spark plugs, plug wires, rotor and rotary cap, these parts all need to be changed over time and your car is getting older now.