how do i check my tps on my 1989 toy truck& what are the specks?

Answer 1

There are no specs when checking a TPS since you will be using a Ohm meter, look for fluid change from the meter and no dead spots while moving switch if you are measuring the actual resistor.
If you are wanting to know the reference voltage to TPS and check return voltage.. Go here http://autorepair.about.com/od/dianostictroublecodes/l/aa042603a05.htm

Answer 2

check it with a DVOM ( digital volt ohm meter ) and the specs are roughly .5 to 4.5....... roughly

but all you can really do is check for a dead spot

a manual would greatly help you. check your local library