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234-4621 O2 Oxygen Sensor Upstream Compatible with Accord 98-02 Civic 01-05 Odyssey 02-04 Prelude 98-01 CL NSX TL
Vehicle Compatibility:
- Replacement for Accord 2.3L L4 1998-2002 Civic 1.7L L4 2001-2005
- Replacement for Odyssey 2002-2004 Prelude 2.2L L4 1998-2001
- Replacement for CL 3.2L V6 2001-2003 NSX 3.0L V6 2000-2005
- Replacement for NSX 3.2L V6 2000-2005 TL 3.2L V6 1999-2003
Timely Replacement Of Vehicle Oxygen Sensor Is Very Important!
Improve Fuel Economy
When the oxygen sensor detects incomplete fuel combustion, it reduces the amount of fuel injected, making fuel more economical for fuel performance.
Reduce Exhaust
Ensure that the ternary catalytic converter has conversion efficiency for hydrocarbon, carbon monoxide and nitrogen oxides in the exhaust, and carry out the conversion and purification of pollutants discharged.
Improve Engine Performance
Ensure the engine receives the correct air/fuel mixture, thus preventing the engine from running thin or rich to ensure efficient engine operation.
Improve Engine Idle Stability
Eliminate engine idle speed instability, steering wheel shake,and let the vehicle safer driving.
Remove And Install Instructions
- Identify the fault sensor from the dashboard error.
- Disconnect the faulty oxygen sensor.
- Remove the oxygen sensor with tools. (Ratchet, socket or wrench)
- Compare the original and replacement oxygen sensors, especially the plug must be exactly the same.
- Attach the new oxygen sensor to the vehicle, connect the harness and plug it in.
- Clear the fault code and start the car.
New Brand New Journey
- Easy Replacement
- High Performance
- Durable Performance
edward wittekind
Reviewed in the United States on February 26, 2025
Falsely advertised. Went to replace my upstream sensor and this is the down stream sensor.
Mr. Handy man
Reviewed in the United States on January 4, 2025
After installing my OBD read the codes, bought the oxygen sensor problem solved
jed
Reviewed in the United States on March 25, 2024
The connecting wires were to long but I use it anyway operates fine.
Wyatt
Reviewed in the United States on March 13, 2024
It turn my check engine light off and then it made another code pop up (p1164)
Carlos Morales
Reviewed in the United States on December 24, 2024
Queda un poco largo pero funciona de maravilla!
Melvin Avalos
Reviewed in the United States on December 18, 2024
Ase su función corecta
Salinas GG
Reviewed in the United States on January 21, 2024
So you got the dashboard engine light on your 25 year old Honda. You run a scan which tells you your upstream sensor is misbehaving.First thing you have to do is check if you have a ULEV sticker on your rear windows see photo. Then you open the engine compartment and look for the green CTEC ULEV markings on valve cover. Also you look for the upstream sensor at the bottom of exhaust manifold. Follow the red arrow in photo.If your car is a 98 to 2000 4 Cyl. Accord, then the Denso 234-9025 is absolutely the right part for you despite the fast the Amazon fitment app probably telling you it is not.You may be tempted, as I was, to opt for this part, the 234-4621 Amazon-recommended $19.95 solution. I did. This part will make your engine stall, sputter and waste fuel. Worse it cannot clear your smog test.The Denso will set you back about $140, but it is made of platinum and zirconium and it is controlling and optimizing your engine in real time.The $19.95 part just cannot do this. I installed it, took measurements and it failed the test.If your engine is not ULEV you are ok.
Adam Smith
Reviewed in the United States on June 19, 2023
worked perfectly as if oem. cable was a little longer but not an issue with a zip tie handy. took care of 2 of my 02 sensor codes and came with pre applied anti seize on the tip. recommend using gloves for install to not get any body oils on the sensor. good product at less than half the price of autozone/pepboys/oreillys. for reference I have a 2000 honda accord SE. cheers
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