Where's the O2 sensor??

[ryan.hess]

91 3.1L - where is the o2 sensor located? Can someone take a picture and/or measure/guesstimate the length from exhaust port to the sensor? Thanks!

[FastGT31]

its on the rear exhaust manifold. its maybe 8" from the cylinder head, maybe less.

[Darin]

Its not a 3.1 but here is a photo of a 3100 manifold. Its in a similar location. Hope it helps

[ryan.hess]

Interesting.... on the 3.4DOHC, was it placed in the crossover? One of these engines had it in the crossover, I remember seeing it.

[geoffinbc]

Its in the outlet of the rear manifold on all the pushrod motors. It is basically considered the crossover because the front manifold feds into the rear one.