Parts for your 2004 Honda Stream-Map sensor

2004 Honda Stream MAP Sensor — purpose, care, and when to replace

Yes, the 2004 Honda Stream uses a MAP (Manifold Absolute Pressure) sensor. This is documented in Honda’s workshop manual for the Stream RN1–RN5 (Fuel & Emissions section listing MAP sensor diagnostics such as DTC P0106–P0108), and in Honda’s Electronic Parts Catalogue, which shows MAP sensor part numbers 37830-PLC-006 for the 1.7-litre D17A and 37830-PNC-003 for the 2.0-litre K20A. Industry data sources used by workshops also note the Stream’s speed-density control strategy, meaning it relies on a MAP sensor rather than a MAF.

On this model, the MAP sensor reads the vacuum/pressure in the intake manifold so the ECU can calculate engine load. That info is used to set fueling, ignition timing, idle stability and altitude compensation. The result is smooth cold starts, tidy throttle response, and decent fuel economy across Kiwi and Aussie conditions, from coastal runs to high-country climbs.

The MAP sensor isn’t a routine replacement item, but it does appreciate a bit of attention during major services. Owners should have it checked around the 100,000–120,000 km mark or whenever drivability goes off. A quick visual under the bonnet for brittle wiring, a loose connector, or a perished O-ring is worthwhile. If there’s oily vapour build-up from the PCV system, the sensor port can get mucky, a light clean with sensor-safe electrical cleaner is usually enough. Don’t poke the sensing element or blast compressed air into it.

When replacement is needed, stick with quality OEM-equivalent parts. The unit typically bolts to the intake manifold (near the throttle body on K20A, on or near the throttle body on D17A) with a sealing O-ring. Fit the new sensor carefully, avoid over-tightening the screws, and ensure the connector clicks home. After installation, clearing fault codes and performing an idle learn helps the ECU settle. A short road test across a few kilometres with varied throttle will let trims re-optimise.

Common signs the MAP sensor is on the way out include:

• Rough idle, hesitation, or flat spots under acceleration
• Higher fuel use and a noticeable petrol smell
• Hard starting, especially when warm
• Check Engine Light with codes like P0106, P0107 or P0108

Look after the MAP sensor and the Stream rewards with reliable starts, tidy manners in traffic, and predictable economy on longer runs.

Popular questions about the 2004 Honda Stream MAP sensor

Where is the MAP sensor on a 2004 Honda Stream?
On D17A 1.7-litre variants, it’s typically mounted on or next to the throttle body. On K20A 2.0-litre models, it’s usually on the intake manifold near the throttle body, secured with small screws and sealed by an O-ring. Checking the engine code on the build plate helps confirm the exact spot.

What fault codes point to a bad MAP sensor?
Common OBD-II codes are P0106 (range/performance), P0107 (low input) and P0108 (high input). Along with these, owners may notice rough idle, poorer fuel economy, or hesitation. Always rule out vacuum leaks, wiring issues, or a clogged port before replacing the sensor.

Can the Stream be driven with the MAP sensor unplugged?
The ECU may run a limp strategy with default values, but performance and fuel use will suffer, and it can stall. Driving like that isn’t recommended, it’s best to diagnose and fix the issue promptly to avoid further hassles.