Quote:
Originally Posted by nitebluesky
I know that the Honda Civic vx comes with two catsconverters. I don't have the one that's in front of the engine and that one is pretty expensive along with the 02 sensor. Its pretty much stock after my header.
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The VX only came with one catalytic converter and the o2 sensor goes right on top of it, about 3" from the head, the header you have is most likely causing the exhaust pulses to just pound that o2 sensor to death, it's not tuned for a engine that size that is turning that slow, they are a sensitive o2 sensor that doesn't last long with over sized or leaky exhaust.