'04 CEL

[ernbilly]

'04 TRD V6 PO 136 O2 sensor bank 1, anybody know it's location?

 

[Demo Man]

'04 TRD V6 PO 136 O2 sensor bank 1, anybody know it's location?

Drivers side. You'll have one up front before your get to the manifold and one after the cat. Sensor 1 or 2? Google is your friend. Good luck.

 

[ernbilly]

Thanks, ended up being the forward or upstream and more expensive of the two. Picked up a Denso 234-9001 at Advance Auto for $128 and swapped it out. Actually was easier to do than what I expected.

 

[Demo Man]

Thanks, ended up being the forward or upstream and more expensive of the two. Picked up a Denso 234-9001 at Advance Auto for $128 and swapped it out. Actually was easier to do than what I expected.

Heated O2 sensor. That's the expensive one. Not hard to replace. Just getting to it is a pain.