P0171/2187... Bad Cats???
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P0171/2187... Bad Cats???
I've had these codes pop up from time to time and finally ordered a PCV valve and intake manifold gaskets to see if that would do the trick. I haven't installed them yet, but today while driving home, I took a more 'spirited' route and noticed that the light came on. I also noticed the sulfur or "rotten egg" smell. I've noticed this a few times lately and have gone through multiple tanks of gas with the same issue.
My question is, can these codes be coming up due to defective/bad cats? I know these are emissions based codes and am hoping I alleviate them coming up with the minor (and inexpensive) fix of the gaskets, bolts, and PCV. What could be causing that smell? I know that smell can relate to bad cats, among other things.
Car has just over 75,xxx miles.
My question is, can these codes be coming up due to defective/bad cats? I know these are emissions based codes and am hoping I alleviate them coming up with the minor (and inexpensive) fix of the gaskets, bolts, and PCV. What could be causing that smell? I know that smell can relate to bad cats, among other things.
Car has just over 75,xxx miles.
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Dyno didn't show me running lean, which is why I'm a little suspicious.
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C63 AMG
That purge valve is notorious for leaking. If that doesn't fix it, then I would do that bank 1 o2 sensor.
Like I said, the system is sensing too much oxygen in the exhaust, its either correct or the sensor is failing.
Like I said, the system is sensing too much oxygen in the exhaust, its either correct or the sensor is failing.
