Thx for the quik response. They put some type fuel system cleaner in there not sure about the brand or whether it contained silicone or not. I know that it was pretty high stuff at 160 a bottle (dealership). I was told that would remove any water, deposits, ect from my fuel system. Here are more descriptive descriptions of my codes:Sounds like you may have CCCCC (Classic case of constipated catalytic converter). A bad cat won't exhaust sufficiently and becomes more obvious at higher throttle settings, ie may idle ok but may load up when you give it gas. I know the PCM compares the downstream O2 sensor to the up streams but don't know what code it would throw. Have you used any kind of solvent around the throttle body? If it contained silicone it will ruin your O2 sensors. You may also need to clean your throttle body using O2 sensor safe throttle body cleaner.
These are thoughts I would have but you may want to post more complete descriptions on the DTCs (codes), hopefully Ranger or Sub will respond, they have forgotten more than I will ever know.
"P0141 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2"
P0154 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1
P0155 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 2 Sensor 1
P0507 - Idle Speed High
PO3000- Random Misfire
Could a clogged catalytic converter cause the o2 sensors to go bad?