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Old 06-13-2014, 11:01 PM   #1 (permalink)
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Catalytic Convert Confusion/Civic VX

Today, I'd discovered that I had a cracked exhaust manifold when I'd decided to remove the heat shield. Bummed as I was, it then occurred to me that this was probably the reason why I was getting poor gas mileage (i.e. about 37ish mpg) on my 94 Civic VX.

As I was contemplating how I was going to deal with 20yrs. of corrosion on the bolts, it then occurred to me that instead of having what would ordinarily appear to be a catalytic converter, I instead have an exhaust manifold that connects to two down pipes. Additionally, the 02 sensor threads directly into the manifold as illustrated in this picture.

My question to the forum is if whether or not, the catalytic converter is somehow integrated into the exhaust manifold.

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