Quote:
Originally Posted by MJB
Does your cat have O2 sensor anti fouler extenders on them? If not, you could buy some and see if that helps.
*Edit... I just re-read your original post and realized you have FI cats, so you already have the extenders on there. Hopefully the mechanic didn't use any impact/air tools to get your cats off, as that can easily damage the sensors. I'm thinking one of the sensors is damaged and needs to be replaced.
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Yeah, we did use impact wrenches. I was told theres o2 sensors obviously on the bottom of the cat, but also 2 in in the exhaust manifold, is that right? (one on each side?)