Parts for your 2023 Mitsubishi Eclipse cross-Throttle position sensors

2023 Mitsubishi Eclipse Cross throttle-position-sensors: what they do and how to look after them

Based on Mitsubishi Motors service information for the Eclipse Cross (GK/GL series, 4B40 1.5L turbo) and MUT-III diagnostic data lists, the 2023 model is fitted with an electronic throttle body that includes dual throttle-position-sensors (often called TPS1 and TPS2), and the accelerator pedal has its own dual position sensors. This drive-by-wire setup is standard across modern Mitsubishi engines and is supported by OBD-II diagnostics for TPS-related DTCs (e.g., P0121–P0123 per SAE J1979). So, throttle-position-sensors are absolutely relevant and used on the 2023 Mitsubishi Eclipse Cross.

On this model, the throttle-position-sensors tell the engine control unit exactly where the throttle plate sits, while cross-checking with the accelerator pedal sensors. That pairing lets the ECU meter air and fuel smoothly, steady the idle, and deliver the right punch when the driver leans on the pedal. The twin-sensor design provides redundancy and safety—if one reading doesn’t match the other, the ECU can drop into limp mode to protect the engine and the driver.

They’re not really a “replace every X kilometres” item, they’re built into the electronic throttle body and designed to last. Still, regular servicing helps keep them happy. A workshop will typically:

• Scan live data (MUT-III) for TPS and accelerator pedal correlation and check for stored fault codes.
• Inspect the throttle body for carbon build-up and clean it with approved throttle cleaner if needed.
• Perform throttle relearn/adaptation after cleaning or battery disconnect so the ECU knows the exact closed/open angles.

Owners might notice tells such as erratic idle, flat spots, sudden limp mode, or a glowing MIL if the sensors disagree. When that happens, proper fault-finding beats guesswork. Good techs compare TPS1 vs TPS2 and accelerator pedal sensor tracks, confirm stable 5V reference and ground, and only then call the part. Because the TPS is integral to the throttle body, replacement usually means a complete throttle body assembly, followed by an adaptation procedure using factory-level diagnostics.

For Aussie and Kiwi conditions—lots of stop-start and dusty roads—a periodic throttle body check during scheduled services is smart. It keeps throttle response crisp, emissions tidy, and the ECU’s correlation tests happy. Referencing Mitsubishi’s service manual guidance for the 4B40 engine and MUT-III procedures ensures the job’s done by the book and avoids unnecessary parts swapping.

• Does the 2023 Eclipse Cross actually have throttle-position-sensors?
  Yes. The electronic throttle body contains dual throttle-position-sensors, and the accelerator pedal has dual sensors as well. Mitsubishi’s service information and MUT-III data lists include TPS values and correlation checks, and OBD-II defines TPS fault codes for this vehicle.
• How long do throttle-position-sensors last on a 2023 Eclipse Cross?
  There’s no set replacement interval. They’re intended to last the life of the throttle body. With clean induction air and periodic throttle body inspection/cleaning, they commonly run trouble-free for many years. Replacement is generally only required if diagnostics confirm a sensor fault or correlation error.
• What are the signs a throttle-position-sensor needs attention?
  Common signs include a check engine light, limp mode, surging or stumbling on take-off, poor fuel economy, and unstable idle. A scan showing mismatched TPS tracks or TPS-to-pedal correlation, or codes like P0121–P0123, usually prompts further testing and, if confirmed, throttle body replacement and relearn.