Jeep 4.0, identify sensor? (Picture)

TapouT

Well-Known Member
Joined
Oct 5, 2008
Location
Hickory nc
I need to know what sensor this is and what it does. It's on my 1994 Jeep Grand Cherokee. It's located on top of the exhaust manifold and it's the middle one in the pictures. Thanks for the help!

as10.postimage.org_gy5hsmmit_1109011723a.jpg

as10.postimage.org_3z8a3cr5x_1109011724.jpg
 
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