Parts for your 2019 Mitsubishi Asx-Throttle position sensors

2019 Mitsubishi ASX Throttle Position Sensor (TPS)

Yes, the 2019 Mitsubishi ASX uses a throttle position sensor. Mitsubishi’s factory service information for the 2019 ASX/RVR/Outlander Sport (Engine Control/Throttle Body sections) specifies an electronic throttle body with an integrated throttle position sensor and throttle control motor. The same documentation lists TPS-related diagnostic trouble codes (e.g., P0121–P0123, P2135), and the Mitsubishi EPC shows the TPS as part of the throttle body assembly rather than a separate service item. These technical sources confirm the TPS is fitted and relevant on this model.

On the 2019 ASX, the TPS tells the engine control module exactly how far the throttle plate is open. That live signal helps the car sort fuel delivery, spark timing, idle speed, transmission shifting, cruise control and stability control behaviour. Because it’s a drive-by-wire setup, the TPS is built into the throttle body and works alongside the accelerator pedal position sensors for redundancy and safety.

There isn’t a routine service interval for the TPS itself, but the throttle body can benefit from periodic inspection and light cleaning if idle gets a bit rough or throttle response feels lazy. If cleaning is needed, use a proper throttle body cleaner, avoid soaking the electronics, and don’t force the throttle plate by hand. After refit, some vehicles may need an idle/throttle relearn, a scan tool makes that quick, though a short warm-up and drive cycle often does the trick.

• Typical signs of TPS/throttle body issues include: hesitant take-off, erratic idle, poor fuel economy, limp-home mode and a Check Engine light with codes like P0121–P0123 or P2135.
• Because the TPS is integrated, replacement usually means swapping the complete throttle body assembly. Always use a new gasket, check the harness and connector for corrosion or tension loss, and torque the bolts to spec.
• Before replacing parts, confirm the fault with scan data: TP% should move smoothly and correlate with accelerator pedal position. Any drop-outs, jumps or correlation faults point to a sensor or wiring issue.

Quality parts matter here. An OEM or reputable aftermarket throttle body helps avoid nuisance faults, and having a technician perform a proper adaptation/relearn will save time and headaches. For most Aussie and Kiwi owners, this is a straightforward workshop job that restores crisp throttle feel and dependable drivability.

Technical references consulted: Mitsubishi Motors 2019 ASX/RVR/Outlander Sport Workshop Manual (Engine Control—Electronic Throttle Body/TPS description and DTC list), Mitsubishi Electronic Parts Catalogue (throttle body assembly with integrated TPS).

FAQs

Does the 2019 ASX have a separate, replaceable TPS?
The TPS is integrated into the electronic throttle body on the 2019 ASX, so it’s not serviced separately. If the TPS fails, the usual repair is to replace the complete throttle body assembly and perform an idle/throttle relearn.

Where is the TPS located on a 2019 ASX?
It’s built into the throttle body mounted on the intake manifold under the bonnet. You’ll see the throttle body housing with an electrical connector for the motor and sensor. There’s no external, standalone sensor to unbolt.

Do I need to reset or relearn anything after cleaning or replacing the throttle body?
Often, yes. A scan tool can run the throttle/idle relearn. Without a tool, many cars will relearn after a warm-up and short drive cycle, but using a proper diagnostic procedure gives the most reliable result and avoids a high or unstable idle.