![DENSO O2 LAMBDA SENSOR | FOR HONDA S2000 AP1 01-06 F20C [PRIMARY PRE-CAT SENSOR]](http://rhdperformance.co.uk/cdn/shop/files/denso-o2-lambda-sensor-for-honda-s2000-ap1-01-06-f20c-primary-pre-cat-sensor-90177-p.png?v=1731021684&width=1500)
DENSO O2 LAMBDA SENSOR | FOR HONDA S2000 AP1 01-06 F20C [PRIMARY PRE-CAT SENSOR]
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Delivery and Shipping
Delivery and Shipping
Standard Shipping (UK):
Expect delivery in 2–3 working days. We may upgrade your order to Express at no extra charge depending on cart value, location, or items ordered.
Express Shipping (UK):
Sent via premium courier (DHL, UPS, Parcelforce, or FedEx). Most orders placed before 1PM (Mon–Fri) are dispatched the same day for next working day delivery (not guaranteed). Orders after 1PM are shipped next working day.
A working day is Monday–Friday, excluding UK public holidays.
Couriers may deliver on weekends at their discretion, but this is outside our standard policy.
Tracking details will be provided when your order ships.
Stock Information
Stock Information
Please check the stock status before ordering.
A green status means the item is in stock and has been recently verified.
If a product is out of stock or showing “contact us for ETA” just get in touch with us and we’ll give you an accurate restock estimate.
We aim to keep as many products in stock as possible, but due to low demand or special-order items, some products are only available to order in upon request.
Easy Returns
Easy Returns
RHD Performance accept returns on new, unopened products within 30 days of the day you receive your order. To organise your return and get an RMA (Return Merchandise Authoriation) number, please contact us here.
This does not affect your statutory rights.
This Denso O2 Sensor is a replacement for Honda Part numbers 36531-PCX-004 or 36531-PCX-014. This sensor is not a replacement for 36531-PZX-013 which is found on later specification vehicles.
The air-fuel mixture in an engines combustion chamber can affect how hot, how quickly and how cleanly the fuel burns. For optimum combustion, the air-to-fuel ratio needs to be within a certain window. For specific driving conditions, the engine may run in sub-optimal conditions. For example, to be more fuel efficient, the engine may run on a lean mixture. In contrast, to deliver high power performance, the A/F mixture needs to be rich. Such specific mixtures cannot be maintained for a long period of time without risking excessive emissions or even causing damage to the engine or the catalytic converter.
Lambda sensors work constantly to keep the air-fuel ratio correct by monitoring the quantity of unburned oxygen in the exhaust gases and feeding this information back to the electronic control unit (ECU), which can then dynamically adjust the air-fuel mixture to keep it close to the stoichiometric point the ideal ratio at which the catalytic converter will function optimally and keep emissions to a minimum.
Lambda sensors can in fact fulfil two roles: regulating sensors, placed before the catalytic converter, and diagnostic sensors, fitted after the catalyst as an extra layer of security to ensure the converter is doing its job.
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