Parts for your 2024 Mitsubishi Asx-Throttle position sensors

2024 Mitsubishi ASX throttle position sensors — are they used, and what owners should know

Yes, the 2024 Mitsubishi ASX uses a throttle position sensor (TPS). Technical references from manufacturer service information and parts catalogues confirm it. For the Australian and New Zealand ASX with the 2.0-litre MIVEC engine, Mitsubishi workshop manuals for the GA-series ASX/RVR outline Electronic Throttle Control (ETC) with a TPS integrated into the throttle body and a dual-track accelerator pedal position (APP) sensor at the pedal. The same arrangement is documented in parts catalogues, which list the throttle body assembly with an internal position sensor. For the European 2024 ASX (the Renault Captur–based model), the corresponding Renault workshop literature likewise shows an integrated TPS within the drive-by-wire throttle body, working alongside the pedal module’s APP sensor. DTC coverage for TPS circuits (e.g., P0120–P0124, P0220–P0229) in these manuals also indicates the sensor’s presence and role.

On the 2024 ASX, the throttle position sensor is baked into the electronic throttle body and constantly reports the actual angle of the throttle plate to the engine control unit. Paired with the accelerator pedal position sensor, it lets the ECU blend the driver’s request with traction control, cruise control and emissions strategies for smooth, efficient power. It’s not a scheduled service item, but it does benefit from a bit of attention during regular servicing.

For day‑to‑day care, the key is keeping the throttle body clean and ensuring reliable electrical connections. If the butterfly gets gummed up with oil mist, the TPS has to live with a sticky plate, which can feel like hesitation off the line or a wandering idle. A careful clean of the throttle bore and blade with a throttle‑body‑safe cleaner (not soaking the electronics) often restores crisp response. Don’t pry on the plate and don’t flood the motor housing—gentle is the go.

Common signs that warrant diagnosis include:

• Erratic idle, surging or flat spots under light throttle
• Poor fuel economy, black exhaust smoke or a sulphury smell
• Check Engine Light with TPS/APP correlation codes (P012x/P022x)
• Limp‑home behaviour or cruise control dropping out

A technician will confirm TPS health by live‑data checks (smooth percentage change, agreement between sensor tracks and with the pedal), wiring integrity tests and, if needed, scope traces. On most ASX variants, the TPS is not a separate service part—if the sensor itself is faulty, the fix is a complete throttle body replacement. After refitting (or after a battery disconnect), a throttle/idle relearn is recommended using a scan tool, some variants can relearn with a set procedure of key‑on and idle cycles, but a proper adaptation routine saves time and avoids a high idle.

Pro tip for DIYers: chase power and ground issues first. Low system voltage or a tired earth strap can mimic a failing TPS. If in doubt, let a workshop handle it—misalignment or rough cleaning can create more dramas than it solves.

FAQs

Does the 2024 ASX have a throttle position sensor, or is it only a pedal sensor?
It has both. The accelerator pedal carries an APP sensor to measure how much the driver asks for, and the throttle body has an integrated TPS to report the actual throttle plate angle. The ECU cross‑checks them for smooth control and safety.

Can the TPS be replaced on its own, or does the whole throttle body need changing?
On most 2024 ASX variants the TPS is part of the throttle body and isn’t sold separately. If the sensor fails electrically, the usual repair is a complete throttle body assembly, followed by a throttle/idle adaptation.

Will cleaning fix TPS issues on a 2024 ASX?
Cleaning can fix a sticky throttle plate and improve response, but it won’t repair a failed sensor track or wiring fault. If diagnostics point to an internal sensor error or correlation fault, replacement of the throttle body is the proper cure.