[iam_turner]

Hello all,

I have an 88 4Runner equipped with a 22RE, but I am missing some parts. I need to buy a new exhaust manifold, but I am wondering if anyone knows if the sensor is in the pipe, or manifold?

THanks for any help.

[odtseuss]

On an 88 and newer the O2 sensor should be in the pipe underneath the vehicle. 87and earlier the sensor was in the manifold, that was when they changed from a single wire to a 4 wire heated sensor. Newer manifolds can be made to fit a later style by blocking off the hole.

[beatdown83fj60]

Your 02 sensor should be right in front of the cat like said. I've seen brand new manifolds on ebay for 30 bucks. Be careful with the exhaust studs.