Parts for your 2013 Honda Cr-v-Oxygen sensor

2013 Honda CR‑V oxygen sensor: what it does and when to replace it

Yes, the 2013 Honda CR‑V is fitted with oxygen-sensor hardware. Technical references confirm this: the Honda Service Manual for the 2012–2014 CR‑V lists an upstream Air/Fuel Ratio (A/F) sensor (Bank 1 Sensor 1) ahead of the catalytic converter and a downstream heated oxygen sensor (Bank 1 Sensor 2) after it. The Honda Electronic Parts Catalogue and major OEM supplier catalogues (Denso, Bosch) show matching applications. As an OBD‑II compliant vehicle, it must run pre‑ and post‑cat sensors so the ECU can manage fuelling and monitor catalyst efficiency.

On a 2013 CR‑V, the oxygen-sensor setup does two big jobs. Upstream, the wideband A/F sensor constantly tells the engine computer how rich or lean the exhaust is so it can trim fuelling on the fly for smooth running, decent power, and good fuel economy. Downstream, the conventional O2 sensor checks how well the catalytic converter is cleaning things up. Together, they help keep emissions in check and protect the cat from damage caused by over-fuelling.

There’s no strict replacement interval, but by 100,000–160,000 kilometres many sensors slow down or drift out of spec. Signs the CR‑V might want fresh sensors include:

• Check Engine Light with codes like P0135/P0134/P0133/P0420
• Heavier fuel use and a lazier throttle feel
• Rough idle, sulphur/“rotten egg” smell, or a failed WOF/rego emissions check

During regular servicing, it’s worth giving the sensors and their looms a quick look under the bonnet. Check for melted wiring, cracked connectors, or exhaust leaks upstream of the cat (leaks can trick the sensor). If replacement is on the cards, use OEM or high‑quality direct‑fit parts—universal splice‑in types can be fussy on Honda’s wideband system. Always fit to the torque spec in the Honda manual, keep the sensing tip clean, and only use anti‑seize if the new sensor doesn’t arrive pre‑coated from the factory.

After fitting, clear any fault codes and let the CR‑V complete a few drive cycles so the ECU can relearn trims. If codes return quickly, look deeper for vacuum leaks, intake or exhaust leaks, or a tired catalytic converter. Done right, fresh sensors can bring back crisp response, steadier idle, and better kilometres per litre—too easy.

How many oxygen sensors does a 2013 Honda CR‑V have, and where are they?

It has two on its 2.4‑litre engine: an upstream Air/Fuel Ratio sensor (Bank 1 Sensor 1) mounted in the exhaust manifold before the catalytic converter, and a downstream heated oxygen sensor (Bank 1 Sensor 2) mounted after the catalytic converter. The upstream one handles fuelling control, the downstream checks catalyst efficiency.

Can they keep driving with a bad oxygen sensor?

They can usually drive short‑term, but it’s not ideal. A lazy or failed sensor can bump up fuel use, make the car run ordinary, and over time may harm the catalytic converter. Best bet is to diagnose and replace promptly to avoid bigger bills.

Do oxygen sensors need routine replacement on a 2013 CR‑V?

There’s no fixed schedule, but many are past their best by 100,000–160,000 km. If fuel economy drops, the Check Engine Light pops on with relevant codes, or the car fails an emissions test, it’s time to test and likely replace. During servicing, a visual check of the sensors and wiring is smart preventative maintenance.