Parts for your 2002 Honda Accord-Map sensor

2002 Honda Accord MAP Sensor: purpose and servicing

Yes, the 2002 Honda Accord is fitted with a MAP (Manifold Absolute Pressure) sensor. Honda’s 1998–2002 Accord factory service manual (Helm Inc.) lists the MAP sensor as part of the fuel and emissions control system on both the 2.3L F-series four-cylinder and the 3.0L J-series V6, and the OEM parts catalogue shows a dedicated MAP unit for these engines. The OBD‑II diagnostics in the manual also include MAP-related DTCs (P0105–P0108), confirming its role. So, for this model year, the MAP sensor is very much relevant and routinely used by the ECU to manage fuelling and ignition.

On a 2002 Accord, the MAP sensor measures absolute pressure in the intake manifold so the ECU can work out engine load and calculate the right air–fuel mixture and spark timing. It also doubles as a barometric pressure input on key-on, helping the car adapt to altitude. That’s why a crook MAP can make the Accord feel flat, chew more petrol, idle roughly, or throw the check engine light.

It’s not a scheduled replacement item, but it’s smart to give it a look during major services—especially if there are drivability niggles. The sensor sits on or near the throttle body (F23 four-cylinder) or on the intake plenum near the throttle body (J30 V6), secured with two screws and a 3‑pin plug. Under the bonnet, inspect the sensor port and the manifold passage for carbon build-up, and make sure any vacuum nipple (where fitted) isn’t clogged. Don’t soak the sensor itself—avoid harsh solvents. A quick spritz of electronics/MAF-safe cleaner on the port and a gentle wipe is fine.

A technician can verify operation with a scan tool or multimeter: look for a steady 5 V reference, good ground, and a sensible signal that tracks vacuum. With ignition on, engine off, the reading should approximate local atmospheric pressure (~100 kPa at sea level). If replacement is needed, go for a quality OEM-equivalent unit, fit a fresh O‑ring if applicable, and snug the screws evenly. After swapping, clear any codes and perform Honda’s idle learn procedure (warm engine, all accessories off, let it idle for several minutes). That helps the ECU settle trims and keeps fuel economy tidy for the kilometres ahead.

• Common signs to check the MAP: hard starts, surging idle, hesitation on take-off, poor fuel economy, black smoke, or DTCs P0105–P0108.

Popular questions about the 2002 Honda Accord MAP sensor

Where is the MAP sensor located on a 2002 Accord?
On the 2.3L four-cylinder it’s mounted on the throttle body assembly, easy to spot with a 3‑wire connector. On the 3.0L V6 it’s on the intake plenum near the throttle body. Two screws hold it in, making access straightforward under the bonnet.

Can a MAP sensor be cleaned, or does it need replacing?
The sensing element isn’t serviceable, but light cleaning of the port and the manifold passage with electronics/MAF-safe cleaner is fine. If scan data or voltage tests show it’s out of spec—or if it logs P0106–P0108 after checks for vacuum leaks and wiring—replacement is the go.

What fault codes point to a bad MAP sensor?
Typically P0105 (MAP circuit fault), P0106 (range/performance), P0107 (low input), and P0108 (high input). Sometimes rich/lean or EGR-related codes can tag along. Always rule out split hoses, blocked ports, and wiring issues before condemning the sensor.