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2006-2007 O2 (Air/Fuel) Oxygen Upstream Sensor

Discussion in '2nd Gen. Tacomas (2005-2015)' started by rocker1500, Nov 17, 2019.

?

Are Denso 2349051 and 2349026 interchangeable?

  1. Yes

    100.0%
  2. No

    0 vote(s)
    0.0%
  1. Nov 17, 2019 at 3:17 PM
    #1
    rocker1500

    rocker1500 [OP] Member

    Joined:
    Apr 22, 2017
    Member:
    #217034
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    Male
    First Name:
    Chris
    NOVA
    Vehicle:
    2006 Silver Tacoma DCSB TRD Sport
    TRD Wheels PTR18-35090 Toyo Open Country ATII 265-70R16 Kenwood DDX6704S Headunit Leer Camper Shell (Came with truck, might get rid of it) Weather tech floormats
    Hey all,

    I had a bit of an issue replacing the upstream O2 (Air/Fuel) sensor in my 2006 Tacoma. Rock Auto is where I bought the sensors from. On their website, for the 2006 Tacoma 1GR-FE, it states the following:

    DENSO 2349051
    Upstream; To VIN 5TE*U##N# 6Z144911 (NUMMI) or 3TM*U##N# 6M003084 (TMMBC)

    DENSO 2349026
    Upstream; From VIN 5TE*U##N# 6Z144911 (NUMMI) or 3TM*U##N# 6M003084 (TMMBC)

    So I bought the 2349026, because my vin is: 5TELU42N86Z2XXXXX. When I pulled out the old O2 sensor, it was definitely a Denso 2349051 (see attached picture showing old and new).

    Couple of scenarios could be at play here: 1) Rock Auto is wrong, or 2) the O2 sensor was replaced at some point previously with the incorrect sensor.

    I ended up putting in the new sensor anyway, because the wiring looked exactly the same, the connectors were compatible, etc. My CEL is off now, but the monitors haven't completed yet. My O2 sensor issue was just a P0051 (B2S1 Driver Side Upstream O2 Heater Circuit Low).

    Does anyone know if the outputs from these sensors would be different enough to be detrimental to the truck? Or are they interchangeable?

    Thanks in advance!

    20191117_153334.jpg
     
  2. Nov 24, 2019 at 8:01 AM
    #2
    Benny123

    Benny123 Kid from the late 70s

    Joined:
    Mar 2, 2018
    Member:
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    680
    Gender:
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    First Name:
    Ben
    South Charlotte, NC
    Vehicle:
    2005 Speedway Blue Tacoma AC V6 TRD Off Road 4x4
    Replacing everything worn, broken, and rusted.
    Hey, I was just looking at those too. Maybe I missed it, but I dont see a difference between the two VINs. Eg, they should both work.

    I was trying to figure out the angle to remove it. How did you do it?
     
  3. Nov 24, 2019 at 4:11 PM
    #3
    rocker1500

    rocker1500 [OP] Member

    Joined:
    Apr 22, 2017
    Member:
    #217034
    Messages:
    21
    Gender:
    Male
    First Name:
    Chris
    NOVA
    Vehicle:
    2006 Silver Tacoma DCSB TRD Sport
    TRD Wheels PTR18-35090 Toyo Open Country ATII 265-70R16 Kenwood DDX6704S Headunit Leer Camper Shell (Came with truck, might get rid of it) Weather tech floormats
    So far it seems like the "newer" one that I ordered (2349026) works in place of the old one. I've probably over 500 miles on it this week and still have no CEL.

    To remove it I used an O2 sensor wrench and gained access to it from both underneath (next to the cat) and from behind the rearmost rubber splash shield in the wheel well. It was a PITA for me turning it a little bit at a time, but it wasn't too bad.
     
    Benny123 likes this.
  4. Nov 24, 2019 at 5:17 PM
    #4
    Benny123

    Benny123 Kid from the late 70s

    Joined:
    Mar 2, 2018
    Member:
    #246042
    Messages:
    680
    Gender:
    Male
    First Name:
    Ben
    South Charlotte, NC
    Vehicle:
    2005 Speedway Blue Tacoma AC V6 TRD Off Road 4x4
    Replacing everything worn, broken, and rusted.
    Thank your sir. I appreciate. Threw a bank 1 sensor 2 code today. P0038. Ordered the passenger rear oxygen sensor. But just in case the front one is the real culprit needed to know how to get at it. I just hope its not the cat.

    Did multimeter test on the rear one and it failed so hope this is it.
     

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