NTK Lambda Sensor 1 Pre-Cat (Honda)

Description

The NTK 24291 Lambda is NTK oxygen sensor 24291, a 4 wire heated sensor for the Honda Civic EP1 / EP2.

Key features of the NTK 24291 Lambda

• NTK OE type oxygen sensor
• 4 wire, heated
• 18mm thread, 22mm hex
• OE specified connector and hardware
• 533mm lead
• Dual coated platinum element
• SKU: NTK-24291

Specifications

What it does

The NTK 24291 Lambda measures oxygen in the exhaust and sends the reading to the ECU, which trims fuelling to keep the mixture correct for emissions and economy.

Design

The NTK 24291 Lambda has an 18mm thread and 22mm hex, with the OE type connector and attaching hardware for a plug in fit. A heated sensor reaches working temperature quickly after a cold start, so the ECU can move into closed loop fuel control sooner. The dual coated platinum element gives long life and a quick response.

Signs of a worn sensor

A tired sensor can respond slowly, which can show as poor fuel consumption, rough idle or a fault code. Fitting a new NTK 24291 Lambda restores a correct reading to the ECU.

Choosing the right part

Lambda sensors differ by wire count, lead length, connector and position in the exhaust. Upstream sensors sit before the catalytic converter and control fuelling; downstream sensors sit after it and monitor the converter. Compare the old sensor with this one before fitting.

Fitting

Fit with the exhaust cool, use a proper sensor socket and route the lead away from hot exhaust parts. Do not get grease or cleaner on the sensor tip.

If you are asking us about this item, quote the SKU NTK-24291 so we can match the exact part.

Related NTK products

See also: NTK Lambda Sensor 2 Post-Cat (Honda), NTK Lambda Sensor 1 Pre-Cat (Civic 01-05 EP3/Integra DC5), NTK O2 Oxygen Lambda Secondary Sensor Honda Civic Type R EP3 01-05.

Check the Fitments tab, sensor position and the connector on your old sensor before ordering, or contact us with your vehicle details.