94 Chevey Silverado with TPS Problems

I have a 94 chevy Silverado 5.7l 2 wd 2500 and the truck keeps putting on the Service engine light OBD code says TPS has low voltage. I was wondering what could cause that. I already bought a new tps and put on there and it keeps doing it. I also cleared the code. Does anyone have any suggestions?

i would start tracking the wires to see if you have a bad connecton.