Parts for your 2020 Honda Cr-v-Maf sensor

2020 Honda CR‑V MAF sensor — what it does, where it is, and how to look after it

Yes, the 2020 Honda CR‑V uses a Mass Air Flow (MAF) sensor. This is documented in Honda’s CR‑V Service Manual for 2017–2021 (PGM‑FI section, which details testing of the “MAF/IAT” unit), backed by Honda’s electronic parts catalog that lists a “Sensor, Air Flow (MAF)” for L15B7 1.5‑litre turbo models, and mirrored by major OEM suppliers’ catalogues that specify a dedicated MAF unit for the 2020 CR‑V. Those technical sources confirm it’s a relevant and fitted component on this vehicle.

On the 2020 CR‑V, the MAF sensor is a hot‑film type that measures the actual mass of air entering the engine and also reads intake air temperature. The engine control module blends that data with the manifold absolute pressure (MAP) signal to nail down fuel trims, turbo response and spark timing. In real‑world terms, a healthy MAF helps the CR‑V start cleanly, idle smoothly, pull strongly and sip fuel rather than guzzle it.

It’s mounted in the intake duct just after the air filter housing. Because it sits right where all the incoming air passes, it can be affected by dust, oil vapour and over‑oiled aftermarket filters. Honda doesn’t schedule MAF replacement as routine service, but periodic inspection is smart—especially if there’s a check engine light, rough idle, flat spots, or rising fuel use.

• Tell‑tales of a dirty or failing MAF: hesitation on take‑off, hunting idle, sootier exhaust, or codes like P0101–P0104.
• Gentle clean: remove the sensor and spray only with dedicated MAF cleaner, avoid touching the sensing element.
• Air filter hygiene: fit a quality, dry‑type filter and ensure the airbox seals properly to keep grit out.

If replacement is on the cards, go with an OEM or reputable brand and avoid cheap “look‑alikes”. Under the bonnet, disconnect the battery, unplug the connector, undo the two fixing screws, lift the unit straight out, then install the new one with the sealing O‑ring seated squarely. After refitting, clear any stored fault codes and take the CR‑V for a gentle drive so fuel trims can relearn. If issues persist, check for intake leaks and confirm the MAP sensor is reading sensibly—on this model, both signals work together.

Handled with care and fed clean air, the CR‑V’s MAF sensor should run for years without fuss.

Popular questions about the 2020 Honda CR‑V MAF sensor

Where is the MAF sensor on a 2020 CR‑V?
It’s fitted in the intake tube immediately downstream of the air filter box. Look for a small rectangular sensor body with a 4‑pin electrical connector and two mounting screws. Remove it straight out to avoid damaging the hot‑film element.

Can the MAF sensor be cleaned, or should it be replaced?
Light contamination can often be sorted with proper MAF cleaner. If cleaning doesn’t restore smooth running or fault codes return quickly, the sensor may be degraded and replacement is the better bet. Never use throttle body or brake cleaner on a MAF.

Do 2020 CR‑V hybrids also have a MAF sensor?
Hybrid variants still meter intake air when the petrol engine runs, and service documentation shows an intake air flow sensor is present. Always confirm by VIN or parts catalogue for your market, but most 2020 CR‑V powertrains use a MAF‑type airflow meter.