Parts for your 2005 Honda Accord-Map sensor

2005 Honda Accord MAP sensor: purpose, care, and replacement

Technical sources confirm the 2005 Honda Accord is fitted with a MAP (Manifold Absolute Pressure) sensor. The Honda factory service manual for the 2003–2007 Accord (PGM‑FI section, Helm Inc.) and Honda parts catalogues list a MAP sensor on both engines offered that year: the 2.4‑litre K24A inline‑four and the 3.0‑litre J30A V6. OBD‑II diagnostics for this model also include MAP‑related codes (P0106, P0107, P0108), further verifying its use. It’s mounted on the intake manifold, close to the throttle body.

The MAP sensor is the engine’s barometer. It measures manifold pressure so the ECU can calculate air mass, then set the right fuel, ignition timing, and idle behaviour. At idle (high vacuum), the reading is low, under load (low vacuum), it’s higher. Because the Accord runs a speed‑density strategy rather than a hot‑wire MAF, a healthy MAP signal is crucial for smooth running and good fuel economy.

Typical warning signs include rough idle, flat acceleration, poor kilometres per litre, hard starts, and the check engine light. Before blaming the sensor, it’s worth ruling out vacuum leaks, split PCV hoses, or gummed‑up throttle bodies—any of those can skew MAP readings.

Servicing tips under the bonnet:

• Inspect the connector and loom for chafing, corrosion, or a loose fit. The MAP has a 5‑volt reference, a ground, and a signal wire—any interruption will play havoc.
• Ensure the manifold port to the sensor isn’t blocked by carbon or oil mist. A careful clean of the port with throttle body cleaner is fine.
• If contamination is visible on the sensor tip, use electronics‑safe cleaner sparingly. Don’t poke the sensing element.

When replacement is needed, stick with quality OEM‑grade parts (Denso/Keihin are common on Honda). It’s a quick job: disconnect the battery, unplug the connector, remove the small screws, lift out the old sensor, seat the new one on a clean, undamaged seal, and refit. Tighten only to the specification in the Honda manual—these fasteners are small, so “snug, not heave‑ho” is the go. Clear fault codes, then verify live data shows normal pressure at key‑on and sensible readings at idle and under a light rev. With a good MAP sensor, the 2005 Accord runs cleaner, uses less petrol, and feels crisper on the road.

Popular questions

Where is the MAP sensor on a 2005 Honda Accord?
On the 2.4‑litre four and the 3.0‑litre V6, the MAP sensor sits on the intake manifold near the throttle body. It’s a small, rectangular sensor with a three‑pin connector, mounted so its port sees manifold vacuum. Access is usually straightforward with basic hand tools.

What are the symptoms of a failing MAP sensor on this model?
Common signs are rough idle, sluggish take‑off, higher fuel use, hard starting, and the check engine light with codes like P0106–P0108. Because vacuum leaks and dirty throttles can mimic MAP faults, a quick smoke test and visual hose check are smart before replacing parts.

Does a 2005 Accord also have a MAF sensor?
No—this Accord uses a speed‑density setup, relying on the MAP sensor (and intake air temperature) instead of a traditional hot‑wire MAF. The airbox has an intake temperature sensor, but not a separate MAF meter.