Parts for your 2007 Honda Fit-Map sensor

2007 Honda Fit MAP sensor: what it does and how to look after it

Yes, the 2007 Honda Fit (GD-series, L15A engine) uses a MAP sensor. Honda’s factory Service Manual for the 2007–2008 Fit/Jazz (Fuel & Emissions, “MAP Sensor” section) specifies testing and replacement procedures for the Manifold Absolute Pressure sensor. The manual’s OBD-II diagnostics list DTCs P0106, P0107 and P0108 for MAP performance, low and high voltage. Honda’s parts catalogue for the GD Fit also lists a “Sensor, MAP” for the intake manifold/throttle body. These technical sources confirm the MAP sensor is fitted and critical to engine control on this model.

On a 2007 Honda Fit, the MAP sensor measures pressure inside the intake manifold so the ECU can work out how much air the engine is breathing. Paired with intake air temperature and engine speed, it lets the ECU calculate fuelling and ignition timing on the fly. That’s why the little Honda pulls cleanly up a hill, idles neatly at the lights, and adjusts to altitude changes without a fuss—because the MAP sensor feeds the brains of the operation accurate pressure data.

It’s not a high-wear item, but it does live a tough life under the bonnet. Oil mist and crankcase vapour can film the sensing port, and heat cycles can harden the O-ring. As part of regular servicing (say every 30–40,000 km), a quick inspection pays off. Look for cracked wiring sheathing, loose connectors, or a perished O-ring. If there’s oily residue, remove the sensor and gently clean the tip with electronics-safe sensor cleaner—never poke the port with a pick. Let it dry fully before refitting.

Replacement is straightforward—usually a couple of screws/bolts and an electrical plug, plus a new O-ring. Keep the key off, disconnect the plug, swap the unit, and snug the fasteners to avoid cracking the plastic body. Use a quality OEM or reputable aftermarket part. After replacement, clear any stored codes with a scan tool, or the ECU will relearn within a few drive cycles.

Common signs it’s on the way out include rough idle, flat spots on take-off, increased fuel use, hard starting, or the check engine light with codes P0106–P0108. If those crop up, testing the MAP sensor should be near the top of the list.

• Service tip: Inspect the connector and loom whenever you’re doing plugs or a throttle body clean.
• Good practice: Replace the O-ring if it looks flattened or brittle to prevent unmetered air leaks.

Popular questions

Where is the MAP sensor on a 2007 Honda Fit?
It’s mounted on or near the throttle body on the intake manifold. Look for a small rectangular sensor with a 3‑pin plug. On most GD Fits, it’s held by two screws and sealed with an O-ring.

How often should the MAP sensor be replaced?
There’s no fixed interval—it’s condition-based. Inspect it during major services and replace it only if it’s faulty, contaminated beyond cleaning, or the connector/O-ring has failed.

Does the 2007 Fit use a MAF sensor as well?
No. This model runs a speed-density system that relies on the MAP sensor (plus IAT, TPS, and RPM) rather than a MAF. That’s normal for Hondas of this era.