2004 Ford F150 "p1131 code o2 sensor" Questions

...p1131 code replaced o2 sensor before cat it still runs like **** with no check engine light what could be the problem YES I AM A Girl vacuum leak in PVC line or clogged PVC. its a leak after the map ...

p1131 is o2 sensor bank one it is reading lean it may need to be replaced and the other one is 02 sensor bank two it is the same code. check your alternator make sure its working and clean the battery

p1131 and p1151 deal with the O2 sensors 1151 says Bank 2 Sensor #1 Heater Circuit intermittent. 1131 says that HO2S 11 indicates lean. p0306. Check the plugs wires and coil at Cyl #6 (second one back

code p1131 on 97 f150 4.6 on bank 1 what does it mean? P1131--Lack of HO2S-11 Switch,Sensor Indicates LeanFront O2 Sensor -- at converter inlet,pass side (Bank #1)Could be ten thingsCheck that you ...

...code of P1131... Is it that sensor off the exhaust manifold the problem?? I also heard you have to have a special tool for this?? It runs great maybe idles a little rough. Does anyone have any ...

p1131 to lean bank 2 on po174 this is what computer says f150/2003 ford pickup, 4.2 liter engine automatic check engine came on and computer says it needed the above codes. Are these the ford codes as

...p1131 and p1151. It tells me that it is the down stream oxygen sensor that needs to be replaced. I had a similar problem with my 01 windstar and it turned out to be something else so I am checking ...

code P1131 & P1151 1997 Mustang GT 4.6. What do these codes mean and how do I fix them Hope this helps you or future parties of intrest. P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor

...code p1131 mean on a Lincoln Continental 2002 Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 In simple terms, it means the engine computer is not "seeing" the O2 sensor ...

is engine4.6 code p1131 Is the code P1131 or PO131. PO131 is upstream heated o2 sensor circuit low voltage, bank 1. Not able to find the P1131 code.