Parts for your 2014 Honda Accord-Throttle position sensors

2014 Honda Accord throttle position sensor: what it does and how to look after it

Yes, the 2014 Honda Accord does use a throttle position sensor (TPS). Honda’s 2013–2015 Accord Service Manual (Electronic Throttle Control System) specifies two throttle position sensors, TP Sensor A and TP Sensor B, built into the electronic throttle body alongside the throttle actuator motor. The engine control module monitors both sensors and sets diagnostic trouble codes such as P0121–P0124 and P2135 if their signals are out of range or don’t agree. Honda’s parts catalogue for the 2014 Accord also shows the TPS is integrated within the throttle body assembly (not supplied as a separate service part) for both the 2.4L K24W and 3.5L J35Y engines.

On this Accord, the TPS tells the ECU exactly where the throttle plate sits, so the car can manage air intake, fuel delivery, ignition timing and idle speed with finesse. With drive-by-wire, it’s a key safety and drivability input, there are two sensors for redundancy, and their signals are constantly cross-checked. If the readings go off, the car can drop into limp mode to protect the engine and occupants.

There’s no scheduled TPS replacement interval, but a bit of preventative care during servicing goes a long way. Typical symptoms of TPS or throttle-body issues include:

• Hesitation, surging, or a hunting idle
• Poor fuel economy or stalling at lights
• Check engine light with codes P0121–P0124, P2135, or related throttle actuator faults

Good workshop practice on a 2014 Accord is to check live data and fault codes first, then inspect the throttle body and wiring. The TPS is built into the throttle body, so if the sensor is confirmed faulty, the fix is to replace the throttle body assembly rather than the sensor alone.

1. Confirm faults with scan data (compare TP A/B agreement and smooth change from closed to wide-open).
2. Inspect connectors and the engine earths, repair any damaged wiring.
3. Clean the throttle bore and plate carefully with throttle-body cleaner (avoid drowning the electronics).
4. If required, replace the throttle body with a new gasket, torque fasteners to factory spec.
5. Perform the Honda idle learn/throttle relearn procedure after battery or throttle work, then clear codes and road test.

As part of routine servicing, a light throttle-body clean every 40–60,000 kilometres helps keep the idle stable. Always use quality parts, and if the car throws correlation codes (TP A/B mismatch), don’t ignore them—sorting it early keeps the Accord driving smoothly and saves fuel.

Popular questions

Does the 2014 Honda Accord actually have a throttle position sensor?
It does. The model uses electronic throttle control with two internal throttle position sensors (A and B) inside the throttle body. Honda’s service manual details these sensors and the related DTCs the ECU sets if their readings aren’t right.

Can the TPS be replaced separately on a 2014 Accord?
No. On this model the TPS is integrated into the throttle body assembly. If the sensor fails testing, the recommended repair is to replace the complete throttle body, then carry out the idle learn procedure.

What are common signs of TPS trouble on this Accord?
Drivers may notice a rough or hunting idle, hesitation, poor economy or a check engine light. Common codes include P0121–P0124 and P2135. A careful scan-data review, wiring inspection and, if needed, throttle-body replacement will sort it.