Check Engine Light

[Sick96Stang]

Went to autzone today to get the codes pulled because my check engine light has been going on and off lately. Its an o2 sensor Bank 2 Sensor 2. I know bank 2 is the bank in front of were the cats would be but it sensor 2 the one on the left or right side of my car? I have the MAC O/R H-pipe but I also have the MIL's on there. I dont think it is the MIL's that are bad because I have 2 MIL's and they are hooked up to both the sensors in bank 1. Neither of the sensors in bank 2 looked bad could it just be a loose connection or something?

 

[bdcardinal]

you have it backwards. bank 2 is the drivers side bank. sensor 2 is the back sensor. you need to get MIL eliminators or have a tune where the rear O2's are turned off.

 

[Sick96Stang]

I have MIL's on there already. They are on the back 2 sensors, do u think the MIL's went bad or is the wiring not right somehow or the o2 sensor went bad?

 

[Thiel]

Yea,just change the frount ones i got new ones n it made my car run so much better the first two control ur mixture n the back two check for emis- n to make sure the cars hot to burn the unburned gas, i had that same code i had wire in mils i pulled em n got the steeda ones they work but there huge

 

[bdcardinal]

Yea,just change the frount ones i got new ones n it made my car run so much better the first two control ur mixture n the back two check for emis- n to make sure the cars hot to burn the unburned gas, i had that same code i had wire in mils i pulled em n got the steeda ones they work but there huge

dont mean to flame, but you cant read. he said the code is for sensor 2. sensor 2 is the back o2. more than likely changing out the front o2 will only cause his wallet to be $80 lighter. more than likely your MIL eliminator went bad.

 

[HuskerCobra96]

Hold the phone here gentlemen. What is the actual code number your car is triggering? P0156? P0430? With the code, I can pinpoint the issue and give you the help needed to get this taken care of. I have some experience in this area...

 

[tomustang]

you should also check if you ripped the wire that goes to theO2 sensor.... found out that was my problem.

 

[d347h3]

I am having the same problem, I have x-pipe and am throwing P0171. System lean bank 1. right now i have nothing on the front senors, and steeda mils on the bank ones. I am wondering if maybe one of my mils is bad. Thanks.

 

[bdcardinal]

well that code is for the front passengers side sensor. what it says is that you are running lean. the rear 02's would not throw that code.

 

[el_kid_1]

Most likely your MIL eliminator has gone bad. But, if you tell us the codes, we will be in a better position to give a diagnosis.