Parts for your 2010 Mitsubishi Lancer-Throttle position sensors

2010 Mitsubishi Lancer Throttle Position Sensor (TPS)

Technical references confirm the 2010 Mitsubishi Lancer is equipped with a throttle position sensor. The Mitsubishi Motors Workshop Manual for CY/CZ Lancer (2007–2015, Engine Controls) describes an electronic throttle control system using twin TPS signals integrated into the throttle body. The Mitsubishi ASA parts catalogue lists the throttle body assembly with built-in sensors for 4B11/4B12 engines, and industry data services such as Autodata/ALLDATA include TPS-related fault codes (P0120, P0121, P0122, P0123, P0221) for this model. So yes—the TPS is absolutely relevant on the 2010 Lancer.

On this Lancer, the TPS reports the exact angle of the throttle plate to the ECU. That signal is used to meter fuel, adjust ignition timing, control the electronic throttle motor, and coordinate with systems like the CVT’s shift logic, traction control and cruise control. Because it’s drive-by-wire, the throttle body houses a pair of TPS circuits for redundancy, the ECU constantly cross-checks both for accuracy.

As part of regular servicing, the TPS isn’t a scheduled replacement item, but it does benefit from a clean, dry and secure environment. The sensor is integrated into the throttle body, so the best preventative care is to keep the throttle assembly and its connector in top nick. If removing the intake duct for an air filter change, it’s worth a quick look: no oil in the plug, no broken clip, and no chafed wiring near the manifold.

If drivability goes off—rough idle, hesitation, unexpected limp-home, high or surging idle—or the check engine light pops up with TPS codes, it’s time for diagnosis. A scan tool can watch live throttle angle (and A/B correlation) while gently blipping the pedal. Any dead spots, erratic jumps or mismatch between the two tracks points to trouble. Because the TPS is built into the electronic throttle body on the 2010 Lancer, replacement typically means swapping the whole throttle body assembly. Don’t force the butterfly by hand, use throttle body cleaner sparingly and a lint-free cloth if cleaning is required, and fit a new gasket on refit. Some models run coolant through the body—be ready to catch and top up. After refit, perform a throttle/idle relearn with a capable scan tool (MUT-III or equivalent) or follow the service manual’s procedure so idle and tip-in feel return to normal. Done right, it’ll drive smoothly, sip less petrol, and behave well in Aussie and Kiwi stop–go traffic.

• Common symptoms: check engine light (P0120–P0123, P0221), hesitation or flat spots, erratic idle or stalling, poor fuel economy, limp mode.
• Service tips: don’t pry the blade, inspect the connector, replace the gasket, and complete a relearn after any throttle body work.

FAQs

Does a 2010 Mitsubishi Lancer have a throttle position sensor?
Yes. The 2010 Lancer uses an electronic throttle body with dual TPS tracks built in. This is documented in Mitsubishi’s workshop manual and reflected in the model’s supported TPS fault codes. It’s a core input the ECU uses to manage fuelling and throttle control.

Can the TPS be replaced separately on a 2010 Lancer?
Typically no. On these engines the TPS is integrated into the electronic throttle body and isn’t serviced as a separate part. If the sensor fails or the tracks don’t correlate, the fix is usually a complete throttle body replacement, followed by a throttle/idle relearn.

What are the signs the TPS is failing on a 2010 Lancer?
Look for a check engine light with codes like P0120–P0123 or P0221, erratic or high idle, stalling, hesitation on take-off, poor fuel use, and the car dropping into limp mode. It may still be driveable for short trips, but it’s best to get it scanned and sorted before it leaves them stranded.