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Does anyone know what that little gizmo is that sticks in the intake arm right after the MAM? I was thinking either an o2 sensor or the IAC not sure I pulled it out and it looks like there is some kind of reader in the tip which sends information through a coil.
Yup thanks guys I looked it up. So there are only two o2 sensors and they are on the exhaust? Thats good I am at 99k and I think its about time to have them replaced.