Changing An A/F Sensor?
 

Hey everyone, new to 4Runner.

I'm a Honda guy, so I'm unfamiliar with Toyotas. This is for my ladie's 4Runner.

2000 4Runner SR5

I used an OB2 reader to pull the following codes:

P1133
P1135
P1130

A couple were pending codes, the others actually tripped codes. Usually around 50-60MPH.

Anyway, cleared the codes, CEL went off, and then came back on later that night.

I figured it was an 02 sensor, checked online, the only thing I could find was 02 sensor, position 1 bank 1. [?] I have no idea what that means.

Fast forward to today, I went down to Toyota. Service guy took my VIN# and the codes I pulled, and I walked out with an Air/Fuel sensor.

Part#:

89467-35011

SENSOR,
AIR FUEL RAT

Question is:

Where does this sensor go? Looks simple enough, 2 bolts on the flange and then a plug.

Thanks in Advance.

-Mace

did the part look like this? http://www.4x4wire.com/toyota/4Runne...n%20sensor.jpg

yes. exactly like that.

but there is no extra gasket or whatever that silver part is.

i literally just did this. make sure you get a new gasket and you will need the 2 nuts. go back to the dealership and get both of these items

read this for tips:

http://www.toyota-4runner.org/showth...threadid=40653

where is bank1?

is sensor 1 bank 1 the one before the cat?

or is it somewhere else?

from what i have read and may know, 4runners have 2 or 4 O2 sensors, and cali cars have 4 because of smog rules, i am not quite sure what they mean by 1 or bank 1,


i think if you replace our o2 sensor you should be fine, and make sure its exactly the right one, because there are 2 diffrent o2 sensors on california cars

Look under the passenger side by the front wheel. It's on the exhaust pipe kinda on the top side.