O2 Replacement on my 97 (1 Viewer)

Joined
Jun 3, 2005
Messages
531
Location
Centennial, CO
Hi all,

I'm tracking down the P0130 and P0133 codes I have been getting for the last couple of months. Have replace the EGR valve and spark plugs and that has reduced my check engine light frequency, but I am still getting the P0133 code. I'm going to replace my O2 sensors next with these:

Denso 234-4153 Oxygen Sensor
Denso 234-4157 Oxygen Sensor (Air and Fuel Ratio Sensor)

Now, my exhaust is only about 4 years old since I replaced it with Magnaflow headers and the 2nd cat, so I don't expect I'll have too much trouble getting the O2 sensors out.

Have any of you had to buy additional parts to pull these out and replacement, assuming these won't be rusted? I want to make sure I get everything I need before tackling this job.
 
Joined
Nov 9, 2012
Messages
10,830
Location
Olathe, KS, USA
Hi all,

I'm tracking down the P0130 and P0133 codes I have been getting for the last couple of months. Have replace the EGR valve and spark plugs and that has reduced my check engine light frequency, but I am still getting the P0133 code. I'm going to replace my O2 sensors next with these:

Denso 234-4153 Oxygen Sensor
Denso 234-4157 Oxygen Sensor (Air and Fuel Ratio Sensor)

Now, my exhaust is only about 4 years old since I replaced it with Magnaflow headers and the 2nd cat, so I don't expect I'll have too much trouble getting the O2 sensors out.

Have any of you had to buy additional parts to pull these out and replacement, assuming these won't be rusted? I want to make sure I get everything I need before tackling this job.
I would buy new gaskets and nuts as well.

Use anti-seize on the threads.
 

flintknapper

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Joined
May 22, 2004
Messages
9,682
Location
Deep East Texas
O2 sensor replace4.jpg
 
Joined
Oct 1, 2014
Messages
373
Location
bozeman MT
New gaskets came with my new denso sensors. But I didn't get Toyota branded parts. I had to cut the old 02 bungs off, welding on new bungs from yotashop.com this weekend.
 

flintknapper

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Joined
May 22, 2004
Messages
9,682
Location
Deep East Texas
Awesome! Thanks Flintknapper. Hopefully this will also help the rest of the community down the line as well.


Soak the studs down real well the night before. Take your time removing the old nuts.....especially if you are in the rust belt or an area where they salt the roads in the winter. You don't want to bugger up the threads. Then 'chase' the threads before installing the new O2's.

O2 sensor replacement8.jpg


O2 sensor replace1.jpg
 

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