| Subject:
OXYGEN / AIR FUEL RATIO SENSOR REMOVAL CAUTION | Bulletin No: 01-003/15 |
| Last Issued: 02/27/2015 |
BULLETIN NOTE
- This bulletin supersedes the previous bulletins 01-032/10 issued 05/27/10, 01-051/09 issued 11/19/09, 01006/08 issued 02/11/08 and 10/10/08 and 01-019/07 issued 05/10/07. The APPLICABLE MODEL(S)/VINS and REPAIR PROCEDURE has been revised.
- Changes are noted below in Red beside the change bar.
APPLICABLE MODEL(S)/VINS
| 2000-2003 Protege | 2000-2005 Miata | 2000-2002 626 | 2000-2002 Millenia |
| 2000-2006 MPV | 2001-2006 Tribute | 2008-2011 Tribute | 2008-2010 Tribute Hybrid |
| 2011-2015 Mazda2 | 2004-2015 Mazda3 | 2006-2014 Mazda5 | 2003-2016 Mazda6 |
| 2006-2015 MX-5 | 2004-2011 RX-8 | 2013-2016 CX-5 | 2007-2012 CX-7 |
| 2007-2015 CX-9 |
DESCRIPTION
Use the following repair procedure to minimize the need to replace the catalyst converter/exhaust pipe when removing oxygen sensors and/or air fuel ratio sensors.
REPAIR PROCEDURE
Oxygen Sensor Removal Procedure:
WARNING: To avoid personal injury, allow exhaust system to cool down before removing oxygen sensor.
NOTE: In some cases oxygen sensor and/or air fuel ratio sensor seizure will occur during this removal procedure. If seizure occurs, remove the converter or exhaust pipe from the vehicle and re-attempt removal with the assembly placed in a vise. This will maximize your positioning and ability to apply adequate torque to remove the sensor.
- If reusing oxygen sensor, mask it with masking tape (A) to prevent lubrication soaking.
- Spray CRC Freeze-Off (or equivalent) around the oxygen sensor flange (B).
CAUTION: Avoid excess spraying. Remaining flammable substance could catch fire.
- Allow lubricant to reach sensor threads for a minimum of 1 – 2 minutes.
NOTE: FOLLOW ALL PENETRANT MANUFACTURER INSTRUCTIONS LISTED ON THE PRODUCT LABEL.
- Turn 30 degrees counter-clockwise with SST (49 L018 001).
- Remove SST or Oxygen Sensor Socketย and spray lubricant again in the same place.
- Allow lubricant to reach sensor threads for a minimum of 1 – 2 minutes.
- Use SST or Oxygen Sensor Socketย to loosen sensor.
NOTE: If sensor begins to bind, it may be necessary to work the sensor in a tightening and loosening motion to slowly work the sensor out.
- Wipe off all excess lubricant.
- Clean O2 sensor threads in converter or pipe with SST J-43897-18.
NOTE: If the converter or exhaust pipe threads cannot be correctly cleaned on the vehicle, remove the converter or exhaust pipe from the vehicle to perform thread cleaning procedure. If the threads cannot be adequately cleaned to correctly install the sensor, then converter or exhaust pipe can be replaced. However, replaced catalytic converters are collected, the threads are cleaned and a new sensor is installed and torqued to spec. to confirm the converter replacement was necessary.
The claim is subject to debit if a new sensor can be installed and torqued to spec.
- Coat O2 sensor threads with โNEVER-SEEZโ (or equivalent) high temperature nickel based anti-seize grease.
WARNING: If reusing the oxygen sensor, completely remove the masking tape to prevent vehicle fire.
- Install O2 sensor and tighten to:
Tightening Torque: 29 – 49 Nm (22 – 36 ft. lbs.)
01-003/15
02/27/2015
Bestseller No. 1
Offset Oxygen Sensor Socket, 3/8-Inch Drive, 7/8-Inch (22mm), Wire Gate Accesses Sensor from Side, Preventing Damage to Wires, Universal for Most Cars
- PREMIUM QUALITY: Made of premium chrome molybdenum steel, this socket allows the user to apply maximum torque to ensure precise assembly and function. The tool meets and exceeds ANSI/ASME standards.
- DESIGN: The socket has a slotted design. So you remove the oxygen sensor with the harness still connected. This 3/8" drive oxygen sensor socket is also offset and compact, providing extra leverage even in hard-to-reach locations.
- FEATURES: 7/8" (22mm) socket fits most oxygen sensors, works with any 3/8" drive ratchet or breaker lever, offset drive gate with wire links the sensor from the side to prevent damage to the wires.
- FUNCTION: This oxygen sensor is very convenient to use, the sensor is in the harshest environments and may need to remove some elbow grease, this quality tool will save you time! to help your car's emissions and fuel consumption.
- WHAT YOU GET: 1 x Offset Oxygen Sensor Socket. This product is sure to meet your requirements. If you have any questions, please contact us in time, we will reply you within 24 hours.
Bestseller No. 2
5PCS O2 Oxygen Sensor Socket Set, 1/2 & 3/8 in Drive, 7/8 in (22mm), Premium Removal Tool with Thread Chasers & Offset Wrenches, Heavy-Duty Automotive Kit for Easy Installation & Repair
- ใProfessional Oxygen Sensor Removal Toolใ This set is designed for the removal, installation, and maintenance of oxygen sensors. It includes a 7/8 in (22mm) oxygen sensor socket with 1/2 in drive, plus 3/8 in and 1/2 in drive offset wrenches for different working angles, compatible with most American, Japanese, and European vehicles. Ideal for both professional mechanics and DIY car owners to replace oxygen sensors efficiently.
- ใIncludes Thread Chaser & Offset Wrenchesใ Comes with Thread Chasers to clean and repair damaged sensor threads, ensuring a secure fit. The Offset Wrenches provide easy access to sensors in tight spaces, making removal and installation hassle-free.
- ใHigh-Strength & Durable Materialใ Made from chrome molybdenum carbon steel, this toolset offers exceptional strength and torsion resistance, preventing deformation or damage. Built for high-torque applications, ensuring long-lasting reliability.
- ใRust Protection for Extended Tool Lifeใ All metal parts are coated with rust-preventative oil, protecting against corrosion during storage and shipping. This may leave a slight oily residue on the surface, which is completely normal and does not affect performance.
- ใPortable Storage Case for Easy Organizationใ This set includes a dedicated storage case, keeping all components neatly organized and preventing loss. Whether used in an auto repair shop or home garage, it ensures the tools remain clean, protected, and ready for use at any time.
Bestseller No. 3
Oxygen Sensor Socket 22mm 7/8 in, 1/2 in Drive O2 Sensor Removal Tool, Heavy-Duty Chrome Vanadium Steel with Side Wire Cutout, Ideal for Car Exhaust System, Durable & Easy to Use
- ใProfessional Oxygen Sensor Removal Toolใ Designed with a 22mm (7/8 in) hex socket, this tool is ideal for removing and installing oxygen sensors in cars, SUVs, trucks, and diesel vehicles. Perfect for both professional mechanics and DIY car enthusiasts!
- ใ1/2 in Drive โ Compatible with Multiple Toolsใ Works with 1/2 in drive ratchets, torque wrenches, and extension bars, providing efficient and effortless sensor removal. Ensures a precise fit on standard oxygen sensor nuts, reducing the risk of stripping.
- ใHeavy-Duty Chrome Vanadium SteelใCrafted from high-quality Chrome Vanadium (CR-V) Steel, this tool offers exceptional durability and corrosion resistance. Built to withstand high torque applications without deforming or breaking.
- ใSide Wire Cutout for Safe Sensor RemovalใFeatures a side wire cutout, allowing sensor wires to pass through freely. Prevents damage to cables during removal and installation, ensuring a safer and more efficient repair process.
- ใUniversal Fit for O2 Sensor ReplacementใCompatible with most 22mm (7/8 in) standard oxygen sensors, making it a must-have for automotive repairs and exhaust system maintenance. Whether youโre replacing an old sensor or installing a new one, this tool delivers a professional-grade experience!
SaleBestseller No. 4
DURATECH O2 Oxygen Sensor Socket 3/8" Drive x 7/8"(22mm), Oxygen Sensor Remover Tool Chrome-Vanadium Steel with Side Wire Gate, O2 Removal and Installation
- Product Size: The O2 sensor socket has a standard 6-point shape. The socket size is 22mm/(7/8"), which can fit most oxygen sensors. The square hole size is 10mm/(3/8"), suitable for 3/8" drive ratchet or breaker bar
- Premium Material: This oxygen sensor socket is made of high quality Chrome-Vanadium steel, meets and exceeds ANSI/ASME standards. It has surface phosphating to improve oxidation and corrosion resistance, and heat treatment to improve material performance and make it more durable
- Side Wire Gate: The O2 sensor removal tool is designed with a side wire gate. The wire cutout width is 0.30", the wire cutout length is 2.25", providing clearance to pass through the wire without damage
- Anti-slip Slotts: The square hole of this socket has a unique slotted design. The four small slots have a good anti-slip effect, which can help to hold the ratchet firmly, making you more secure when using the oxygen sensor tool
- Wide Application: This O2 sensor remover is suitable for most cars, you can use it to disassemble, replace and clean the car oxygen sensor to help reduce your car's emissions and fuel consumption (ATTENTION: Due to the different positions of oxygen sensors in different cars, for some oxygen sensors our product may not be convenient to operate, please make sure there is enough space for installation and operation before purchasing. And if you encounter any problems, please feel free to contact us and we will provide worry-free after-sales service)
SaleBestseller No. 5
A ABIGAIL 5 PCS Automotive O2 Oxygen Sensor Socket Offset 02 sensor Wrench Remover Tool and Thread Chaser Tool
- ใDesignใStandard 6 point with low profile and slotted design to enable you remove oxygen sensors with the wiring harness still attached, and the socket is offset and compact which allows extra leverage even in hard to reach spots.
- ใUSEใBuilt for use with ratchets and breakers bars to remove and install oxygen sensors and hex vacuum switches on vehicle, even if you don't have a lot of experience working with cars. This high quality tool can save your time!
- ใPackageใ1-pc 3/8โ Dr. extra deep broach socket (1.85in 47mm long), 1-pc 3/8โ Dr. low-profile crowfoot socket wrench (1.15in 29mm long), 1-pc 3/8โ Dr. offset crowfoot socket wrench (3.1in 78mm long), 1-pc M18 x 1.5mm and 1-pc M12 x 1.25mm thread chasers with 3/8โ drive to clean and repair damaged threads.
- ใMaterialใMade from high performance chrome molybdenum and solid cast steel construction for strength and durability - Finished with Black Oxide to prevent rust.
- ใServiceใIf you have any issues with the Oxygen Sensor Socket Wrench and Thread Chaser Set, simply contact customer service for troubleshooting help, parts, replacement, or refund. Our aim is to make you satisfy the parts and the service we provide for you.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
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