Parts for your 2018 Honda Accord-Map sensor

2018 Honda Accord MAP sensor: what it does and how to look after it

Technical sources including Honda’s factory service information for the 2018 Accord (Engine Controls—MAP Sensor removal/inspection procedures) and OEM parts catalogues for 1.5T, 2.0T and Hybrid variants list a Manifold Absolute Pressure (MAP) sensor for this model. That means the 2018 Honda Accord is fitted with a MAP sensor and it’s very much relevant to how the car runs.

The MAP sensor measures the absolute pressure in the intake manifold so the engine control module can work out engine load. On the 2018 Accord—whether it’s the 1.5‑litre or 2.0‑litre turbo petrol, or the Hybrid—that data is used to fine‑tune fuelling, ignition timing, boost control on turbo models, and idle stability. It also helps with diagnostics for EGR and misfire events. When it’s healthy, drivers see smooth take‑offs, good fuel economy, and clean emissions across Aussie and Kiwi roads.

It’s not a regular replacement item, but it’s smart to include the MAP sensor in major service checks. Typical clues it’s playing up include a check engine light with codes like P0106, P0107 or P0108, rough idle, doughy acceleration, hard starting, and higher fuel use. Oil mist and carbon can coat the port over time—especially on turbo engines—so keeping the PCV system and intake tract clean helps the sensor live a long life.

When servicing a 2018 Honda Accord MAP sensor:

• Under the bonnet, locate the sensor on the intake manifold (there may also be a separate charge‑air/boost pressure sensor on turbo models—different part, different job).
• Unplug the connector and check the pins and loom for corrosion or damage.
• Remove the fixing, lift the sensor straight out, and inspect/replace the O‑ring.
• If just dirty, gently clean the tip and port with electronics‑safe cleaner, don’t poke the sensing element.
• Refit, tightening to the workshop‑manual spec, clear any fault codes, and perform an idle relearn if required.

If faults return after a clean, fit a quality OEM‑equivalent or genuine sensor. After replacement, a quick scan‑tool check of live MAP and BARO readings at key‑on (should be similar) and at warm idle is a good way to confirm it’s behaving. Done right, the Accord will feel more responsive, use less petrol, and keep emissions in check over the kilometres.

Does the 2018 Honda Accord actually have a MAP sensor?

Yes. Honda’s factory service manual and OEM parts catalogues for 2018 Accord petrol and Hybrid variants list a Manifold Absolute Pressure (MAP) sensor with test and replacement procedures. It’s mounted on the intake manifold, and turbo models also use a separate charge‑air/boost pressure sensor.

What symptoms or fault codes point to a bad MAP sensor on this model?

Common signs include a check engine light with codes P0106 (range/performance), P0107 (circuit low) or P0108 (circuit high), rough idle, sluggish acceleration, higher fuel use, and hard starting. Live data that doesn’t track barometric pressure at key‑on is another giveaway.

Can the MAP sensor be cleaned, or should it just be replaced?

Light contamination can often be cleaned with electronics‑safe spray and a new O‑ring, which is a cost‑effective first step. If codes or drivability issues persist, replacement is the go. After refitting, clear codes and carry out an idle relearn for the best result.