I just got an exhaust installed on my '97 Max. However Check Engine light came on soon after. When I got it checked at autozone codes 0110 and 0325 came on that indicate IAT sencor and Knock sencor. At the dealer thy asked me 160$ just to check it out. Any ideas what the problem is?

 

knock sensor is typical with maximas but the other dont know what the IAT is, u can get the knock sensor on ebay or GD section for around 90-120$ and change it ur self

 

there is a write up for it in the how-to's.

and IAT I've never heard of either but try changing your KS maybe that will clear up the codes causing the IAT.

 

IAT as i just found out stands for Intake Air Temp as too how to fix it i have no idea because i have the same code 0110