01-05 Honda Civic Front Oxygen Sensor 1.7L Engine
Direct replacement oxygen sensor for 1.7L Civics that bolts straight into the factory exhaust manifold location. This is a critical emissions component that reads exhaust oxygen content to keep your fuel mixture dialed in. If your check engine light is on or fuel economy has tanked, a failing O2 sensor is often the culprit.
Will this clear my check engine light?
Only if the fault code is actually pointing to the oxygen sensor. Scan your vehicle first to confirm P0130–P0135 range codes. If it's a different fault, fixing the sensor won't clear unrelated errors.
Do I need any special tools or sealant to install this?
You'll need a socket wrench and ideally an oxygen sensor socket (makes removal easier without damaging the wiring). No thread sealant required—the factory threads are fine as-is. Let the engine cool before touching the exhaust manifold.
What happens if I install this and the light comes back on?
Return it within 30 days if the code reoccurs immediately after install. More likely: a dirty MAF sensor, vacuum leak, or failing catalytic converter is the real problem. Have the codes scanned again to confirm.
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