Parts for your 2014 Honda Odyssey-Throttle position sensors

2014 Honda Odyssey throttle-position-sensors

Honda’s own service information for the 2014 Odyssey (PGM-FI, Electronic Throttle Control System) confirms the vehicle uses dual throttle position sensors (TP Sensor A and TP Sensor B) integrated into the electronic throttle body. Related OBD-II fault codes such as P0121–P0123 and P2135 are documented, and dealer parts catalogues list the sensors as part of the throttle body assembly rather than a separate, bolt-on item. So yes, throttle-position sensors are definitely used on this model and are highly relevant to drivability and emissions.

On a 2014 Odyssey, the throttle-position sensors tell the powertrain control module exactly how far the throttle plate is open, so it can meter fuel, time ignition, and coordinate the automatic transmission’s shift strategy. They work alongside the accelerator pedal position sensors (on the pedal) to deliver smooth, responsive drive-by-wire behaviour. Accurate throttle feedback also helps with cruise control, torque converter lock-up, and Honda’s emissions strategy at idle and cruise. If the signals don’t agree, the van may drop into a reduced-power “limp” mode to protect the engine and gearbox.

There’s no routine replacement interval for the TPS because it’s built into the throttle body. As part of periodic servicing, it’s wise to keep the throttle bore clean using a throttle-safe cleaner, but avoid soaking the shaft or flooding the electronics under the bonnet. If the Odyssey shows a check engine light, erratic idle, surging, flat spots, poor shift quality, or higher-than-usual fuel use, a quick scan for codes and a look at live data (TP% and TP Sensor A/B correlation) can save time and guesswork. Common TPS-related fault codes include P0121, P0122, P0123 and P2135.

• If a TPS fault is confirmed, the usual fix is to replace the entire throttle body assembly (new gasket recommended).
• After replacement or a thorough clean, perform an idle relearn/throttle angle learn. Many scan tools can command this, otherwise, follow Honda’s procedure (battery charged, engine up to temperature, no accessories on, allow to idle undisturbed).
• Check and clear any stored DTCs, then complete a short drive cycle so the ECU can refine its trims.
• If in doubt, a pro with a scope can verify clean, matching TP A/B signals across the pedal and throttle sweep.

FAQs

Does the 2014 Honda Odyssey have a separate, replaceable TPS?
Not as a standalone part. The throttle-position sensors are built into the electronic throttle body. If the TPS fails or the signals don’t correlate, the recommended repair is usually to replace the throttle body assembly. The accelerator pedal has its own position sensors, but they serve a different role.

What are common symptoms of a failing TPS on a 2014 Odyssey?
Expect a check engine light, reduced power mode, erratic idle, surging, flat spots on acceleration, and sometimes harsh or odd shift timing. Scan for codes like P0121–P0123 or P2135, then confirm with live data. Cleaning the throttle bore can help if contamination is the culprit, otherwise, replacement may be required.

Do I need any special steps after replacing the throttle body?
Yes. Use a capable scan tool to run the throttle/idle relearn, or follow Honda’s manual relearn procedure. Make sure the battery is healthy, switch off all loads (A/C, lights), bring the engine to operating temperature, and allow it to idle undisturbed so the ECU can relearn its targets. Clear DTCs and perform a short, varied drive to settle trims.