o2 sensor locations on 1990 2.9l v6 ford ranger

[stamina]

i know there is one right before the catalytic converter, that is all i know as of now, where (if any) are the other ones

 

[RobbieD]

Should be only one on a 1990 2.9L.

 

[stamina]

Should be only one on a 1990 2.9L.

that word shouldi appreciate your feedback though

 

[tw205]

that word shouldi appreciate your feedback though

You should be able to find that info in the wiring diagrams.
You should be able to look at your exhaust and see how many you have.

 

[RobbieD]

that word shouldi appreciate your feedback though

My 1990 Bronco II has only one HEGO sensor. The 1990 EVTM (Ford wiring diagrams) shows only one HEGO sensor on the 2.9, both Federal and California.

So yours "should" have just one, but anything is possible on a 30 year old truck.

 

[stamina]

My 1990 Bronco II has only one HEGO sensor. The 1990 EVTM (Ford wiring diagrams) shows only one HEGO sensor on the 2.9, both Federal and California.

So yours "should" have just one, but anything is possible on a 30 year old truck.

is a 'HEGO' sensor different than an o2 sensor? and is it right before your exhaust?

 

[RobbieD]

No, HEGO is the same as O2 (Heated Exhaust Gas Oxygen). On mine it's on the Y-pipe before the cat.

 

[Cees Klumper]

My California '90 2.9 has only 1 before the cats

 

[stamina]

thanks so much got it figured out!