[The Old Guy 06]

Hello!
Looking for info on where the upstream header-mounted O2 oxygen sensor is supposed to be connected.
Any help greatly appreciated.
THANK YOU!
The Old Guy 06

 

[DCM]

Check out the 89-95 truck section and search there, a few people have asked the same question 🙂. Welcome to TN!

 

[The Old Guy 06]

I've not been able to find the the 89-95 truck section, please be so kind as to send me a link.
I am wondering now if our '91 has a non-91 engine in it.
Do the 1991 2.4 engines have just one O2 sensor, or a second one in the exhaust manifold?
Ours has two but no obvious place to connect the upstream exh manifod sensor.
Thank you!
The Old Guy 06

 

[new echo owner]

Do you have picture of your engine? 1991 should have a 22RE if injected!

 

[DCM]

It’s sub forum in the “Hilux” section.

89-95 Toyota Pickup/Hilux

Discussion forum for the 89-95 Toyota Pickup/Hilux owners.

www.toyotanation.com

The 22RE has only one o2 sensor, for the air/fuel mixture.