So my check engine light came on a few week ago, but it will come on and off whenever it feels like... So I went to AutoZone to see what the problem was and it says that it's the Rear AF Sensor, so what I'm thinking is that it's a bad connection because it will come on and off.... So my question is, do anybody know where the Rear AF Sensor is located at?

 

depends on which one, there are 2 rear ones, upper and lower

the upper one is right on top of the rear cat converter.

 

so i assume the lower one is at the bottom of the cat?

 

What was the code? Tell me the code and I can tell you where the senor is located.

 

 

the code is P2240

 

that code is for

Front A/F sensor Bank 2 sensor 1 IP line high voltage

this is the top a/f sensor on the front cat (the one you see when you open the hood)

 

i wonder why i was told that its the rear AF Sensor

 

Because the people at autozone are not qualified techs.

 

lol... much appreciated

 

thank you guys for helping