Hey guys. Does anyone know where the oxygen sensors in the 99 are? My service engine soon light came on and I got a read on it and it said my oxgen sensors are bad. I was thinking about changing them myself? Is it an easy task? Thanks.

 

Get under the car and look.

 

why dont you just cross reference the numbers on the web.....if they match or dont match, you have your answer

 

y-pipe, right infront of your motor.

 

You Should Have 3 Oxygen Sensors. One On Each Side Of The Y-pipe And One After The Catalytic Convertor. You Should Find Out Which One Is Bad Before You Replace Them All Becase They Are A Little Pricey.

Bank 1 Sensor 1 Is The One On Front Y-pipe
Bank 2 Sensor 1 Is On The Rear Y-pipe
Bank 1 Sensor 2 Is The One After The Cat...called The Post Cat Or Downstream Oxygen Sensor

The Code Will Tell You Which One It Is

 

my rear o2 sensor is bad, do i have to change it? What if i dont?

 

This should help:
http://www.courtesyparts.com/A32_O2-sensors.html

 

y doesnt it show 99's? instead of 95-98

 

man these f-ing things cost crazy money from the stores around here good luck best shot is ebay.