MAF & Knock Sensor + fog light help lol.

[importunerdj]

Hey guys well i finally got my pathfinder on tuesday morning, i love it!!!!!!!

It drives awesome i feel so comfortable and safe in it. Well right now my service engine light soon is on. Got the codes read at autozone came up as a Knock and Maf sensor.

How hard is it to change a knock sensor myself??? Im using regular gas...the dealer told me to..is it retarded timing right now since im on regular gas and thats why the knock sensor is kicking in?????

#2...My maf sensor is plugged in and everything..my filter is dirty as hell i need a new one asap, but would a dirty fillter throw it off???

and for 3...how do i reach my fog lights???? lol i have the 99.5 late model.

im trying to put my HIDS in it..thanks for the help guys!!

BTW...at the dealer the light was on and he told me it was the 02 sensors..he cleared the code but told me i should change them soon...do you think he mis read the code??