codes on 96 v-8 explorer

[dufus redbone]

I have these 3 codes pulled.Any idea on what to fix the problems?
Codes p0104, p0402, p0141.
Any help would be appreciated.

 

[rwenzing]

P0104: BP sensor voltage out of range. Check the connectors and wiring to the Barometric Pressure sensor. Could also be a bad sensor.

P0402: Excessive EGR flow rate reported to PCM - often caused by a bad EGR flowrate sensor. On most 96+ Fords, the flowrate sensor is a DPFE sensor.

P0141: Heater Circuit Malfunction (rear oxygen sensor if there is just one, passenger side rear oxygen sensor if there are two). Wiring to oxygen sensor heater is bad or heater element in sensor is bad.

You can find more info on these codes here.

 

[dufus redbone]

I replaced the O2 sensor on the passenger side pipe after the cat and the heat still does not work.where are the other two sensors you talked about?

 

[dufus redbone]

bump

 

[rwenzing]

I don't have a shop manual for your Explorer. Hopefully you do.

The BP sensor looks like this and could be mounted just about anywhere on the truck:

BP sensor testing info



If you have a DPFE, it probably looks similar to one of these:

DPFE testing info

This one will probably be mounted on the intake manifold or somewhere else in the engine compartment. There should be two hoses leading to it from the EGR tube.