08-17-2019, 09:19 AM
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#1
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Denso legit A/F sensor
Even with my mechanics cost discount at the part store they want 170 bucks, when we called Toyota it was over 200+ gasket. I know there’s a lot of fakes out there what do you think of this Denso 234-9002 Air Fuel Ratio Sensor https://www.amazon.com/dp/B000C5YCYS..._Hk.vDbNX9XWE6
Note: Denso partners with other manufacturers to supply the parts your car was originally built with. This product is in a Denso package, however the part may have been manufactured by an independent Denso supplier.
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Last edited by wrpsuite; 08-17-2019 at 09:59 AM.
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08-17-2019, 01:59 PM
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#2
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Join Date: Jul 2009
Location: Orange County, CA
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I bought a pair of Denso O2 sensors from Amazon about a year ago. They were around $98 with tax and free shipping. They work perfectly and looked completely legit. 
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'96 T4R SR5 V6 Auto 2WD 329,000 miles
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08-17-2019, 03:45 PM
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#3
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I just went to advanced auto they had Denso listed for $171 and i used a 25% off coupon. Wish me luck getting the nuts off and clearing 0420 code.
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08-17-2019, 04:18 PM
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#4
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Join Date: Jul 2009
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Quote:
Originally Posted by wrpsuite
I just went to advanced auto they had Denso listed for $171 and i used a 25% off coupon. Wish me luck getting the nuts off and clearing 0420 code.
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Don't know why your sensor is so expensive!
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'96 T4R SR5 V6 Auto 2WD 329,000 miles
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08-18-2019, 12:38 AM
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#5
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Join Date: Apr 2018
Location: California
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Price jumped to $124.88 on Amazon, but still cheaper than those lousy chain auto parts stores. I bought one a month ago and it's legit.
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'00 4Runner SR5 (242,100 miles)
3" Toytec/Bilstein lift, 285/75r16 BFG KO2s
'16 Ford Fiesta ST, pushing more boost than I should be
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08-18-2019, 10:42 AM
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#6
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Elite Member
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Join Date: Nov 2006
Location: Pocono Mountains
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Elite Member
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I replaced both my sensors with Densos off Amazon....front at 80k, rear at 95k, and at 200k now, they both have lasted longer than the factory ones did.
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
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08-18-2019, 03:26 PM
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#7
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Changed it out today one of the bolts was pretty corroded but vice grips did the trick. New bolts from dealer and anti seize. Code is cleared but wont know for sure for a week. Discovered master cylinder leaking so thats new. Not cheap fix from why I’ve read. At 186k and rust free i really want to keep this truck so we’ll see. Any input is appreciated.
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10-09-2019, 08:25 AM
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#8
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Junior Member
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Join Date: Jun 2019
Location: Richmond, VA.
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Quote:
Originally Posted by TheDurk
I replaced both my sensors with Densos off Amazon....front at 80k, rear at 95k, and at 200k now, they both have lasted longer than the factory ones did.
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Are the front and rear sensor the same part #?
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2000 Toyota 4Runner Limited
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10-09-2019, 12:01 PM
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#9
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Elite Member
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Quote:
Originally Posted by Duece
Are the front and rear sensor the same part #?
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Usually not. Depends on year, RWD/4WD, engine, 5spd/auto, and Cali/Fed emissions in '99-'00.
Find My Part
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
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10-09-2019, 01:57 PM
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#10
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Join Date: Nov 2017
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Member
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Quote:
Originally Posted by TheDurk
Usually not. Depends on year, RWD/4WD, engine, 5spd/auto, and Cali/Fed emissions in '99-'00.
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Thanks for the link. My Sons 01 2WD search reveals 2 downstream O2 sensors ( with different part numbers) and no upstream listed...what gives? I need to replace them.
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10-09-2019, 02:12 PM
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#11
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Senior Member
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Join Date: Feb 2019
Location: Hot Springs, AR
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Real Name: Patrick
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Senior Member
Join Date: Feb 2019
Location: Hot Springs, AR
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Quote:
Originally Posted by Ifirefight
Thanks for the link. My Sons 01 2WD search reveals 2 downstream O2 sensors ( with different part numbers) and no upstream listed...what gives? I need to replace them.
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One downstream is universal and the other is OE fitment. You want the OE fitment part number 234-4261.
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10-09-2019, 02:31 PM
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#12
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Senior Member
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Join Date: Mar 2016
Location: Massachusetts
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3rd gen miles on it over 180K miles with 420code 90% chance cat converter.
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10-09-2019, 03:37 PM
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#13
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Elite Member
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Join Date: Nov 2006
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Elite Member
Join Date: Nov 2006
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Quote:
Originally Posted by Ifirefight
Thanks for the link. My Sons 01 2WD search reveals 2 downstream O2 sensors ( with different part numbers) and no upstream listed...what gives? I need to replace them.
Sent from my iPhone using Tapatalk
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Upstream you need an air/fuel sensor for 2001, not an O2 sensor. Downstream, you need the OE Style, unless you want to mess with soldering wires (not recommended).
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
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10-09-2019, 09:26 PM
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#14
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Member
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Join Date: Sep 2017
Location: Texas
Posts: 152
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Location: Texas
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Just a heads up, I bought two Denso A/F sensors off Amazon this past spring and when I went to install them one a month or so ago one was a dud right out of the box. Denso wouldn't warranty it because Amazon is not an approved distributor.
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10-10-2019, 01:59 AM
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#15
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Senior Member
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Join Date: Nov 2012
Location: Santa Monica, CA
Posts: 1,418
Real Name: Keith
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Senior Member
Join Date: Nov 2012
Location: Santa Monica, CA
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Real Name: Keith
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I have used Densoproducts.com ("we are not Denso") in the past: OE sensors run about $45-$50 for my '97.
Here's the link to the page with my '97's sensors on it: Denso Automotive OE Replacement Sensors on DensoProducts.com
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97 4R SR5, 4WD/Elock, 3.4, 5spd. OME881/890 springs/OME shocks, 265/70/16 BFG AT/KO2.
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