Serious code problem

[litoa]

2010 Sport Trac, V6, 120,000 miles. It is giving codes P0443, P0403, P161, P155, P0141 and P0135. It is running fairly well, but it has starting stuttering more. A/C has started cuttin in and out. Gas mileage is only down about 1 MPG. Two mechanics have been stumped. Neither on thinks it is all four oxygen sensors. One said he only saw this problem once, over a year ago and can't remember what it was. It looks like the heaters are all good. Sooo, any ideas what the problem could be?

 

[Turdle]

Check all fuses. The listed sensors are on one fuses circuit I think.

 

[Turdle]

Fuse 42 under hood. 15a mini fuse

 

[litoa]

Check all fuses. The listed sensors are on one fuses circuit I think.

Thanks. They were checking the voltages, so I'm sure they also checked the fuses.

 

[Turdle]

Thanks. They were checking the voltages, so I'm sure they also checked the fuses.

Did you check the fuses?

I'm assuming they didnt