Parts for your 2020 Honda Odyssey-Map sensor

2020 Honda Odyssey MAP sensor — what it does and how to look after it

Yes, the 2020 Honda Odyssey is fitted with a MAP (Manifold Absolute Pressure) sensor. This is confirmed by Honda’s service information for the 2018–2020 Odyssey (which details DTCs P0106, P0107 and P0108 for MAP signal range/performance), the 2020 Honda Odyssey parts catalogue listing for “Sensor Assy., MAP” (commonly referenced under part family 37830-5A2-xxx), and independent workshop information systems such as ALLDATA and Mitchell1 that document the MAP sensor’s role and test procedures on the J35 3.5‑litre V6.

On the 2020 Odyssey, the MAP sensor tells the engine control unit how much pressure is in the intake manifold. With that, the ECU can work out engine load and fine‑tune fuel, ignition timing, and cylinder deactivation. In day‑to‑day terms, it helps the van start cleanly, idle smoothly, pull strongly up hills, and keep fuel economy in check on those long Kiwi and Aussie kilometres.

There’s no scheduled replacement interval for the MAP sensor—it’s a solid‑state part—but it should be inspected during routine servicing. A quick check involves ensuring the electrical connector is snug, the wiring isn’t chafed, and the sensor’s port isn’t blocked by oil mist or dust. If contamination is present, use only electronics‑safe cleaner sparingly, don’t poke anything into the port. Avoid over‑oiling reusable air filters, as excess oil can migrate and foul sensors.

Common signs of a dodgy MAP sensor include a check engine light, sluggish throttle response, black exhaust smoke, rough idle, or unexpectedly high fuel use. The Odyssey’s ECU will usually log a code (like P0106–P0108), which a scan tool can read. Before replacing, technicians often confirm the fault by comparing live MAP readings to barometric pressure with the engine off, and to expected kPa values at idle and under a light rev.

When replacement is needed, stick with a quality OEM‑spec sensor and a new O‑ring if applicable. The sensor typically lives on or near the intake manifold under the bonnet and can be swapped with basic hand tools. After fitting, clear any fault codes and let the engine idle for a few minutes so the ECU can stabilise trims, a full idle relearn may be performed if service information calls for it. Keeping the intake tract sealed and the air filter fresh will help the MAP sensor stay happy for the long haul.

• Service tips: inspect connector and vacuum port, verify with scan data, use OEM‑spec parts, clear codes and check trims.
• Symptoms: warning light, rough idle, rich running, poor economy, hesitation.

Popular questions

Where is the MAP sensor on a 2020 Honda Odyssey?
It’s mounted on or near the intake manifold, typically close to the throttle body. Look for a small, rectangular sensor with a two or three‑pin plug and a port that faces the manifold. Access is under the bonnet, removal usually needs just a small socket or screwdriver.

How can an owner tell the MAP sensor is playing up?
Aside from a check engine light, drivers may notice rough idle, sluggish take‑off, higher fuel use, or a petrol smell. A workshop can confirm by scanning for codes like P0106–P0108 and checking live data. It’s worth inspecting wiring and vacuum leaks before condemning the sensor.

Does the Odyssey use both MAF and MAP sensors?
The 2020 Odyssey uses a MAP sensor and also references other inputs (like intake air temperature and throttle position). Some Honda engines use both MAF and MAP, but the key load signal on this model is provided by the MAP sensor as documented in Honda’s service information.