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Well I got a code that popped up the other day which was P0160. Which is according to stengel.site is
P0160 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2Sensor 2. I'm also getting p0171/p0174 but that happened after I put on the vararm airbride, and ported throttle body and removed maf screen. I read up you get those lean codes when you add that airbride though.
I noticed that before I got the code and would get on the car I would get a funky smell coming from the cat area like almost rotten egg/sulfur smell. My city gas mileage is now 14-15mpg but highway still about 28-30mpg. A few weeks later this code came up. So I am assuming one of the 02's are going out already? Car is a 01 with 58K. Which of the four 02's is it? Also I was wondering if it's one of my front 02's can I use one of my rear 02's since I will be having those deleted with the tune I'm getting from ECS and just plug the rears? Thanks
Last edited by Chicago1; Feb 14, 2010 at 07:41 PM.
Is it the actual sensor going out though? What about the gas mileage and the sulfur smell? Wouldn't that maybe mean a clogged cat
You didn't mention what your mileage was before, and if your planned tune is dropping rear 02 sensor support, one can only guess you're going catless, or with a header setup with different cats. I'm not a mindreader.
If your mods have you expecting lean codes, that means the PCM is compensating and probably making things run terribly rich. That will mess with your cats, and your mileage, absolutely. The tune should hopefully cure that, but if you will still be running your stock cats, I'm failing to understand why you'd tune the rear sensors out.
I put the mileage in the first post? But yes I plan on getting headers so I figured while I'm getting the tune I might as well have them turned off and use the rear o2's in the front due to them heat cycling faster(so I read on here) Well we will see what happens after the tune and I will get back. Thanks for the help you may be right the lean may be making them work alot harder.