I can not seem to find the need for three sensor ports on my manifold. I checked this site Table of Contents
, but still no joy.
In the picture there's a sensor on the top left of the manifold, just above where the CTO will go, what is this?
There's a port to the left of the CTO what is this for?
The sensor right above the EGR?
1981 CJ5 ground up restro in progress, finished product will have: 4.2 w/ a 4.0 head conversion, headers, Howell TBI, HEI, D300, AMC 20, D30, 3" lift w/ 33x12.50 BFG. All new hardware, all diffs rebuilt.