Don't O2 sensors usually have there own code though? bank 1 lean and bank 2 rich sounds like a fuel problem or something but I could be wrong I am not to familar with the V6 eclipse. Just wondering [8D]

 

well i know that bank 1 and bank 2 are the 02's but i don't know why its lean and rich reading, you could be right but i know that bad 02's are a typical problem with these cars.

 

You should take readings on the 2 sensors and see which one is in normal specs. Think about it the ECU is checking both sensors then comparing them. One is coming back way too far off so the comp is throwing the code for both cuz it doesn't really know which one is right.

 

I'll replace the O2 sensor first and see what happens, could my CAI have anything to do with the fuel?

 

Not really... Unless you don't have the MAS installed right... Then the ECU won't be seeing the air coming in right...

 

it could be a number of things. i would started by getting the O2 sensors CHECKED. do not get them replaced unless you want to pay $150 a piece. get them checked to make sure that they are the problem. if they are not the problem, then get the cats checked. they can also cause similar problems.(however, usually it also gives a code for the cat). if none of those are the problem, then you may want to check the MAS.

have you done any modifications to the car? is it still stock?

 

the only thing that is throwing me away from the 02 sensor being the problem is that when mine went, it told me exactly which bank was the problem, but definetely at least do what eclisped4u said.

 

That's a good point eng... I was kinda thinkin the Cat but hen again also the O2 sensor... It's in that area obviously though... Or a break in the wire somewhere...

 

The only mod on the engine is an AEM CAI. BTW: How do I specifically check the O2 sensor?

 

If I'm not mistaken you check it by the voltage coming from the wire... If it doesn't change at all then you know it's got a problem.