Parts for your 2013 Nissan Dualis-Throttle position sensors

2013 Nissan Dualis throttle-position-sensor (TPS): what it does and how to look after it

Yes, the 2013 Nissan Dualis (J10, MR20DE petrol) uses a throttle-position sensor. Nissan’s Factory Service Manual for the MR20DE (Engine Control, EC section) specifies an electronic throttle control system with a TPS integrated into the throttle control actuator (throttle body), not a separate bolt-on sensor. Nissan parts catalogues list the throttle body as a complete assembly with built-in sensors, and common OBD-II diagnostics for this model include TPS-related DTCs (e.g., P0121, P2135), further confirming its presence.

On the Dualis, the throttle-position sensor tells the engine computer exactly how far the throttle plate is open. Because it’s a drive-by-wire setup, there’s no cable from the pedal, instead, the ECU blends input from the accelerator pedal position sensor and the throttle body’s TPS to meter air, fuel and ignition. That’s how it keeps idle stable, throttle response smooth, and emissions in check.

Owners and workshops should think of TPS care as throttle body care, because the sensor is built in. Over time, oily vapours and dust can gum up the throttle plate and skew readings, causing rough idle, laggy take-off, hunting revs or limp mode. Many Dualis issues that feel like a “bad TPS” are fixed by correctly cleaning and relearning the throttle body.

• Tell-tale signs: hesitant acceleration, stalling at lights, erratic idle, poor fuel economy, MIL/ETC lights with codes like P0121, P0123, P2135.
• Basic maintenance: every 40–60,000 km, inspect and, if needed, clean the throttle bore and plate with sensor-safe throttle cleaner. Don’t flood the electronics and don’t force the plate open.
• Relearns matter: after cleaning, battery disconnects or throttle body replacement, perform the Nissan procedures—Throttle Valve Closed Position, Accelerator Pedal Released Position, and Idle Air Volume Learn. A proper scan tool makes this painless.
• Replacement tips: the TPS isn’t sold separately, replace the complete throttle body if the sensor is faulty or readings won’t stabilise. Use a new gasket/O-ring, check for vacuum leaks, and verify battery/earth health to avoid voltage-related TPS faults.

Done right, the Dualis will idle neatly, pull cleanly, and keep fuel use on the happy side of the ledger—no dramas.

Does the 2013 Dualis have a separate TPS I can change?

No. On this model the TPS is integrated into the electronic throttle body. If the sensor has failed, the fix is to replace the complete throttle body assembly. The accelerator pedal has its own position sensor, but that’s a different part.

What are the common symptoms of a failing TPS on a Dualis?

Drivers often report rough or high idle, flat spots, poor throttle response, limp mode, and the MIL/ETC lights. Scan tools commonly show codes such as P0121 (TPS range/performance) or P2135 (correlation). Sometimes a careful throttle body clean and relearn sorts it, if not, the body may need replacement.

Do I need to recalibrate anything after cleaning or replacing the throttle body?

Yes. Perform the Nissan relearn procedures: Throttle Valve Closed Position, Accelerator Pedal Released Position, and Idle Air Volume Learn. Many scan tools guide these steps. Skipping relearns can leave the idle unstable even if the mechanical work is spot on.