Parts for your 2001 Honda Stream-Map sensor

2001 Honda Stream MAP sensor — what it does and how to look after it

Yes, the 2001 Honda Stream uses a MAP (Manifold Absolute Pressure) sensor. Technical references that confirm this include the Honda Stream (RN1–RN5, 2001–2006) Service Manual PGM‑FI section, which lists the MAP sensor as a primary ECM input, the factory wiring diagrams showing a three‑wire MAP circuit, and the OBD‑II DTC list including MAP‑related codes P0106, P0107 and P0108. Honda’s electronic parts catalogue (EPC) and Denso application data also show a MAP sensor for both the 1.7‑litre D17A and 2.0‑litre K20A Stream variants. On these engines, the MAP sensor is mounted on the throttle body or directly on the intake manifold with a sealed O‑ring.

On a 2001 Honda Stream, the MAP sensor lets the ECM know how much air the engine is actually drawing by measuring manifold pressure. Honda’s PGM‑FI uses a “speed‑density” strategy, blending MAP, intake air temperature and RPM to calculate load, fuel delivery and ignition timing. A healthy MAP sensor helps the Stream start cleanly, pull smoothly up a hill, and sip fuel sensibly on a long Kiwi or Aussie motorway run.

It isn’t a scheduled replacement item, but it’s worth a quick check at service time. Look for a cracked O‑ring, oil mist around the port, or a loose/green (corroded) connector. If a scan tool’s handy, a key‑on/engine‑off MAP reading should sit near local barometric pressure (around 100 kPa at sea level), drop to roughly 30–45 kPa at warm idle, and respond quickly when the throttle’s blipped. Slow response or implausible numbers often point to a tired sensor or a vacuum leak.

Replacement is straightforward: disconnect the battery, unplug the three‑pin connector, undo the small retaining bolt(s), lift the sensor off, swap the O‑ring for a new one, refit, and tighten to the manufacturer’s spec (snug, not gorilla tight). Avoid solvents inside the sensor, if cleaning, use electronics‑safe cleaner only on the port and let it fully dry. After battery reconnection, perform an idle relearn (let it idle with all accessories off until warm and the fans cycle) so the ECM trims settle.

• Common symptoms of a dodgy MAP: rough idle, flat spots, hard starting, higher fuel use, black exhaust smoke, and DTCs P0106/P0107/P0108.
• Use quality OEM‑equivalent parts, cheapies can cause more grief than they solve.

Popular questions about the 2001 Honda Stream MAP sensor

Where is the MAP sensor on a 2001 Honda Stream?
It’s a small black three‑pin sensor mounted on the throttle body or on the intake manifold, depending on engine. On D17A models it’s typically on top of the throttle body, on K20A variants it may sit on the manifold near the throttle. Look for a single or dual small bolt and an O‑ring seal.

What are the signs the MAP sensor is failing?
Owners often notice rough idle, sluggish take‑off, increased fuel use and the check‑engine light. Scan tools frequently show codes P0106 (range/performance), P0107 (low input) or P0108 (high input). If live‑data MAP values don’t track engine load changes cleanly, the sensor or a vacuum leak is likely at fault.

Can the MAP sensor be cleaned, or should it be replaced?
Light contamination at the port can be cleaned with electronics‑safe cleaner, but if the diaphragm/electronics are failing or readings are erratic, replacement is the go. Always renew the O‑ring, check the connector pins for corrosion, and do an idle relearn after battery disconnect.