Anyone know what these codes mean?

[IRISHdjt]

My check engine light recently came on, and my gas mileage has dropped 3-4 mpg since. I ran the codes and got these two:
P04F5
P2C11

Anyone know what these mean? I figured that they might be O2 sensor/exhaust related. Thanks for the help.

 

[JC1994]

My check engine light recently came on, and my gas mileage has dropped 3-4 mpg since. I ran the codes and got these two:
P04F5
P2C11

Anyone know what these mean? I figured that they might be O2 sensor/exhaust related. Thanks for the help.

sounds like 02 sensors to me.

 

[fordtechguru]

try the codes again... should be p0455 or something, one letter, three numbers.........

 

[IRISHdjt]

try the codes again... should be p0455 or something, one letter, three numbers.........

Hmm, I'm not sure then. The guy at AutoZone ran the codes twice and it read the same thing both times. Do those closely resemble anything that would affect gas mileage, like O2 Sensors?

 

[vr4]

Hmm, I'm not sure then. The guy at AutoZone ran the codes twice and it read the same thing both times. Do those closely resemble anything that would affect gas mileage, like O2 Sensors?

those codes resemble nothing.


like the tech said. Pxxxx 1 letter and 4 numbers. you are concerned with P codes.