Parts for your 2007 Honda Stream-Throttle position sensors

2007 Honda Stream throttle position sensors (TPS)

Technical sources confirm the 2007 Honda Stream (RN6–RN9, R18A 1.8 and R20A 2.0 i‑VTEC) does use throttle position sensors. In this model the TPS are integrated into the electronic throttle body as part of Honda’s Electronic Throttle Control System (ETCS). The 2007 Stream workshop manual lists TP Sensor A/B diagnostics (DTCs P0121–P0123 and P0221–P0223) and correlation faults (e.g. P2135), showing dual, redundant TP sensors are fitted. Honda’s parts catalogue for RN6/RN8 lists a complete throttle body assembly with motor and sensors, with no separate stand‑alone TPS itemised, which matches Honda’s ETCS design used on contemporary Civic/CR‑V with the same engines.

On this Stream, the TPS pair constantly reports actual throttle plate angle to the ECU. That information is blended with the accelerator pedal position to determine fuel delivery, ignition timing, idle speed control, cruise control behaviour, transmission shift strategy, and stability/traction interventions. The dual‑track setup is there for safety, the ECU checks both signals agree before it commands the throttle motor.

There’s no scheduled replacement interval for the TPS on this vehicle. What is worthwhile during servicing is a quick visual of the throttle body connector and loom for corrosion or chafing, and a gentle throttle bore clean if there’s visible carbon. Use a sensor‑safe throttle cleaner, don’t force the butterfly by hand, and avoid spraying with the ignition on. After battery disconnection, cleaning or throttle body replacement, perform an idle relearn so it behaves nicely at low speed.

• Common clues of TPS issues: hesitant take‑off, erratic idle, limp‑home, poor fuel economy, or the MIL on with TP‑related codes (P0121–P0123, P0221–P0223, P2135).
• Basic checks: scan live data for TP Sensor A/B agreement, verify a solid 5‑volt reference and ground at the connector, and rule out harness faults before blaming the sensor.

If the sensors are confirmed faulty, they’re not serviceable separately on the 2007 Stream—replace the throttle body assembly with a new gasket. After install, clear codes and run the ETCS/idle relearn using a capable scan tool, or follow the manual’s procedure: warm the engine, all accessories off, then let it idle undisturbed for several minutes until the radiator fan cycles. That simple step often prevents a rough idle or hanging revs after work under the bonnet.

Popular questions

Does the 2007 Honda Stream have a separate TPS I can replace on its own?
For this model, no. The TPS is built into the electronic throttle body and comes as part of the complete assembly with the throttle motor. If the sensor fails testing, the fix is to replace the throttle body and carry out an idle/ETCS relearn.

What are typical symptoms of a dodgy TPS on a 2007 Stream?
Drivers often notice a flat spot on acceleration, inconsistent idle, sudden limp mode, or the check engine light. Scan tools commonly show codes like P0121–P0123, P0221–P0223 or P2135, and the TP Sensor A/B readings may not track together smoothly.

Do I need to calibrate anything after cleaning or replacing the throttle body?
Yes—an idle relearn is recommended. Warm the engine, switch off all loads (A/C, lights), and let it idle steadily for several minutes until the fan kicks in. A scan tool can also run the ETCS reset. Skipping this step can leave the idle a bit ordinary for a while.