Ford Repair: 1992 Ford Bronco, throttle position sensor, ford bronco

Question
I am having problems with the idle of my 1992 Ford Bronco. Sometimes the idle is low that it starts to miss.Other times  it idles at about 1500 rpms.It seems to get worse as the motor heats up.Im using alot more fuel than normal.The motor is a 351 with an automatic trans.I replaced throttle position sensor,the air fuelmix sensor,the EVP sensor, all in the last two mounths.

Answer
Hello and thanks for the question...I'll try to help.
STOP replacing part in an effort to solve the problem! I would suggest that you do a few things:
1. Check the fuel pressure.
2. Check the computer system for fault codes.
3. Clean the throttle body
4. Inspect the over all tune up condition of the engine

RErik