DENSO Auto Parts Oxygen Sensor P/N:234-4642
DENSO Auto Parts 234-4613 oxygen sensor for the 2001-2005 Honda Civic 4-cylinder 1.7L and the 2003-2005 Civic 4-cylinder 1.3L reads the oxygen content of the exhaust and sends that signal to the engine computer. This DENSO Auto Parts oxygen sensor sits downstream of the catalytic converter and is a heated, narrow-band unit.
A worn oxygen sensor can show up as a check engine light, a rough idle or poorer fuel economy. Before you replace the sensor, rule out an exhaust leak, a damaged wire or connector and the catalytic converter itself, since any of them can trigger a similar code.
It is a direct-fit replacement for the 2001-2005 Honda Civic 4-cylinder 1.7L, which takes two, and the 2003-2005 Civic 4-cylinder 1.3L, which takes one. This listing is one sensor.
Fit and size
Build and materials
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This part cross-references / interchanges with the following part numbers:
Is this 2001-2005 Honda Civic 4-cylinder 1.7L O2 sensor upstream or downstream?
DENSO Auto Parts 234-4613 is a downstream sensor, the position after the catalytic converter. This listing is one sensor.
Is this the O2 sensor for a 2004 Honda Civic 4-cylinder 1.3L or 1.7L?
Yes. DENSO Auto Parts 234-4613 is listed for the 2004 Honda Civic with either engine; the 1.3L takes one and the 1.7L takes two.
What thread size and wire length does this oxygen sensor have?
The thread diameter is 0.708 in. The harness is 27.56 in long, with 4 wires and a female connector.
Can a failed downstream oxygen sensor turn on the check engine light?
Yes, it can. A failing sensor can set a code and may also bring a rough idle or poorer fuel economy, and a shop can read the code and test the sensor.
What does the aluminum oxide layer on this DENSO oxygen sensor do?
The aluminum oxide trap layer protects the ceramic element from silicone and lead poisoning. A PTFE filter and a laser-welded stainless housing add protection from contaminants and corrosion.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.