Parts for your 2016 Honda Odyssey-Oxygen sensor

2016 Honda Odyssey oxygen sensor — what it does and when to replace it

Yes, the 2016 Honda Odyssey absolutely uses oxygen sensors. Technical references including the Honda 2016 Odyssey Service Manual (Fuel and Emissions/PGM‑FI), the Honda Electronic Parts Catalogue, and the under‑bonnet emissions label all show upstream air‑fuel ratio (A/F) sensors and downstream heated oxygen sensors (HO2S) fitted to the 3.5‑litre V6. Being OBD‑II/ADR compliant, the Odyssey relies on these sensors for fuel control and catalyst monitoring.

On this model, the two front (upstream) sensors are wideband A/F sensors. They provide precise feedback so the engine computer can keep the mixture right on the money for smooth running, decent power, and tidy fuel use. The two rear (downstream) sensors are conventional heated O2 sensors that keep an eye on catalytic converter performance. Together they help the Odyssey stay efficient, run cleaner, and avoid that sluggish, thirsty behaviour that creeps in when mixtures go off.

There’s no fixed replacement interval in Honda’s schedules for oxygen sensors, they’re generally a replace‑when‑faulty item. That said, many drivers see them age out around 160,000–200,000 km, especially if the car sees lots of short trips or has a tired catalytic converter. If the check engine light pops up with codes like P0134, P0135, P0154, P0155, P0420, or P0430, or the Odyssey starts drinking more petrol and idling a bit rough, it’s time to test the sensors.

Good servicing habits help them last: fix exhaust leaks early, keep on top of air filter and spark plug changes, and avoid silicone‑based sprays near the intake. When replacement is due, match the position and bank carefully (Bank 1/Bank 2, Sensor 1/2) because the upstream A/F sensors are different to the downstream HO2S. Many quality sensors come with anti‑seize pre‑applied—if they do, don’t add extra. Always tighten to the Honda spec and avoid twisting the wiring. A proper scan‑tool check and a little live‑data review after installation will confirm trims and sensor switching look healthy.

• Common signs: higher L/100 km, rotten‑egg exhaust smell, hesitation, failed WOF/rego emissions checks, and a glowing MIL.
• Pro tip: use OEM‑quality parts, cheap sensors can cause stubborn fuel‑trim and catalyst codes.

Popular questions

How many oxygen sensors are on a 2016 Honda Odyssey?

The V6 typically has four: two upstream wideband A/F sensors (one per bank) and two downstream heated O2 sensors monitoring each catalytic converter. That’s Bank 1 Sensor 1, Bank 2 Sensor 1, Bank 1 Sensor 2, and Bank 2 Sensor 2.

Can they drive with a bad oxygen sensor?

They can usually limp along, but it’s not ideal. The Odyssey may run rich, chew more petrol, and risk damage to the catalytic converters. Leaving it too long can turn a simple sensor swap into a pricier exhaust repair.

What’s the best way to maintain the sensors?

Keep the engine in good nick: timely plugs, clean air filter, no intake or exhaust leaks, and fresh fuel where possible. If a sensor fault pops up, sort it early and use quality replacement parts for proper long‑term behaviour.