Parts for your 2011 Honda Stream-Throttle position sensors

2011 Honda Stream Throttle Position Sensors

Based on technical references — Honda’s 2011 Stream (RN6–RN9) Service Manual (Electronic Throttle Control System section), the Honda parts catalogue for R18A/R20A throttle body assemblies, and Honda diagnostic coverage for TPS-related DTCs (e.g., P0121–P0123, P0221–P0223) — the 2011 Honda Stream does use throttle position sensors. They’re built into the electronic throttle body as dual TPS tracks (TPS1/TPS2) and aren’t sold as a separate, stand‑alone sensor.

On the 2011 Honda Stream, the throttle position sensors are there to tell the engine computer exactly how far the throttle plate is open at any moment. Paired with the accelerator pedal position sensor, they let the drive‑by‑wire system match the driver’s right foot with smooth, accurate throttle movement. The dual sensors add redundancy for safety and fine control, which is why Honda integrates them into the throttle body instead of fitting a separate, serviceable widget.

Because the TPS is part of the throttle body, “replacing the TPS” typically means replacing the whole throttle body assembly. That sounds a bit over the top, but it keeps calibration tight and reliability high. After replacement, expect to carry out an idle learn/throttle position relearn using a scan tool (Honda HDS or an equivalent with ETCS routines). A battery disconnect may help, but a proper relearn procedure is best to settle the idle and throttle response.

As for servicing, prevention goes a long way:

• Keep the intake tract and air filter clean, grit accelerates throttle bore wear.
• If cleaning the throttle body, don’t force the plate by hand and don’t soak the electronics, use throttle‑safe cleaner sparingly and a lint‑free cloth.
• Fix vacuum leaks promptly, they can masquerade as TPS faults.

Common symptoms that point towards throttle body/TPS drama include erratic idle, throttle hesitation, a limp‑home condition, high or hunting idle, and an illuminated check engine light. If the light’s on, scan for codes first — TPS circuit codes (like P0122/P0222) and throttle actuator range/performance codes will steer the diagnosis. Intermittent faults may be wiring‑related at the throttle body connector rather than the sensor itself.

For most Kiwi and Aussie owners, throttle body cleaning every 40–60,000 km and keeping up with scheduled servicing is enough to keep the TPS readings happy. If the unit does fail, go for a quality replacement throttle body, fit a new gasket, torque it evenly, and complete the relearn so the Stream idles and drives as it should.

Does the 2011 Honda Stream have a replaceable TPS on its own?

No. On the RN6–RN9 Stream, the TPS is integrated into the electronic throttle body as dual sensors. If the TPS fails, the typical repair is to replace the throttle body assembly and perform an idle/throttle relearn.

What are the signs the throttle body/TPS is playing up?

Common signs include unstable or high idle, hesitation off the mark, poor throttle response, and a check engine light. The car may enter limp mode. Scanning will often reveal TPS or throttle actuator range/performance codes.

Can cleaning fix TPS issues on a 2011 Stream?

If the issue is carbon buildup causing the plate to stick near closed, a careful clean can help. True TPS sensor or actuator faults won’t be fixed by cleaning, in those cases, replacement of the throttle body and a relearn is the proper remedy.