2000 4Runner Sensors

[Rich Freeman]

Hello,
I'm new and this is my first post. I have a 2000 4runner 3.4L / SR5 / AT / Calif. Emissions with approx. 68,000 miles. My question is I need to replace my A/F sensor and O2 sensor. I have researched on Amazon for the best price and I have found 2 A/F sensors (front sensor before cat) from Denso with Part#s 234-9001 & 234-9002. What is the difference between these 2 or which one do I need? I believe the rear O2 sensor calls for Denso 234-4153.

Any help will be greatly appreciated.
Thanks
Rich

[kball]

Why do you need to replace it? Getting a CEL or just because of the miles?

Check this site.

http://www.urdusa.com/More-Products-...61dh3ha878kmi6

They list these as what you need.

1999 & 2000 Cali auto, 2WD/4WD V6; Front: 234-9002
1999 & 2000 Cali auto, 2WD V6; Rear: 234-4155
1999 & 2000 Cali auto, 4WD V6; Rear: 234-4153

[humanoid]

I was just going to suggest URD myself.

[Rich Freeman]

The reason that I'm wanting to change sensors is because the CEL keeps coming on after approx. 60 miles of driving. Gas mileage has dwindled. The first code that I was getting was A/F sensor bad. I cleaned throttle body & MAF sensor. Code went away. Now keeps coming back with PO420 (Cat problem). I find this hard to believe with the low mileage. Sensors are cheaper to replace for a start.

Thanks
Rich

[TOYOPARTSMAN]

OEM Air Fuel Ratio Sensor from me is $149.23 and the O2 is $104.93.

I offer TN member 30% off MSRP and I only charge actual shipping costs plus a couple of dollars for materials, etc.

I threw that information out there just is case you were on the fence on using OEM or for future items.

Good luck to you.

Originally Posted by Rich Freeman

The reason that I'm wanting to change sensors is because the CEL keeps coming on after approx. 60 miles of driving. Gas mileage has dwindled. The first code that I was getting was A/F sensor bad. I cleaned throttle body & MAF sensor. Code went away. Now keeps coming back with PO420 (Cat problem). I find this hard to believe with the low mileage. Sensors are cheaper to replace for a start.

Thanks
Rich

[TOYOPARTSMAN]

A bit off topic here kball, but it is a small world, I was born and raised in Lakewood, CA.

Originally Posted by kball

Why do you need to replace it? Getting a CEL or just because of the miles?

Check this site.

http://www.urdusa.com/More-Products-...61dh3ha878kmi6

They list these as what you need.

1999 & 2000 Cali auto, 2WD/4WD V6; Front: 234-9002
1999 & 2000 Cali auto, 2WD V6; Rear: 234-4155
1999 & 2000 Cali auto, 4WD V6; Rear: 234-4153

[kball]

Originally Posted by TOYOPARTSMAN

A bit off topic here kball, but it is a small world, I was born and raised in Lakewood, CA.

Lol, yep it's a small world. You never know who you'll find on these forums...

Okay back on topic, with 30% off your prices are pretty good!!

[jetwhine]

Looks like good coverage on this!

[Rich Freeman]

Thanks everyone for the quick responses.

Rich