So heres the story. I put in a WS y pipe, and my car starts running kinda crappy. I get a knock sensor code and replace the knock sensor. Then i get a o2 sensor code, so i replace that. My car is still idleing wierd and feels odd so i change my spark plugs. I had a leak in my y pipe so i fixed that too. Now i still have two codes and i am very cunfused what they meen and why i have em. I am getting (02 01) and (04 12) Can anyone help me out please.

I need the (04 12) ran as weel as any info as to what the hell i can do because my registration is due on the 2nd and i need to pass smog. BTW the car is still idleing wierd.

Thanks guys/gals,

Art

 

Doood, it's in the stickies.

 

dooodde, thats why i asked for the (04 12) It isnt in the stickies. i know what the (02 01) is, but if anyone can help with the (04 12) that would be nice.

 

0412 - Upstream 02 sensor high voltage (right bank)

 

... i just changed that one why is it still messed up? ugghh

 

Look in the ECU stickies for the code definitions.

 

Just to make sure, that's the one closest to the firewall/passenger compartment (not the radiator side). Did you reset the ECU using the screw method? I had to reset mine after I replaced my rear O2 sensor.

And for the idling, check all your vacumn lines and make sure there are no leaks.

 

I reset it using the screw method. Thanks for the vac lines tip i will check that today.