Parts for your 2008 Mitsubishi Outlander-Throttle position sensors

2008 Mitsubishi Outlander throttle position sensors: what they do and how to look after them

Based on technical references including the Mitsubishi Outlander (2007–2010) Workshop Manual for Engine Control/ETACS, OEM parts catalogues (Mitsubishi ASA/CAPS), and professional data services (ALLDATA/Autodata), a throttle position sensor is absolutely used on the 2008 Mitsubishi Outlander. The model runs electronic throttle control, with dual throttle position sensors built into the throttle body and a separate accelerator pedal position sensor for redundancy and safety.

On this Outlander, the throttle position sensors (TPS) monitor the exact angle of the throttle plate as the electronic throttle motor opens and closes it. The engine control unit cross-checks signals from the two TPS tracks to manage idle speed, throttle response, fuel delivery, and emissions. If the readings disagree or drift, the computer will flag a fault and often drop the vehicle into a limp-home mode to protect the engine and transmission.

As part of regular servicing, the TPS isn’t a standalone maintenance item because, on most 2008 Outlanders, it’s integrated into the throttle body. What helps is keeping the throttle bore clean and the electrical connectors tidy. A light clean of the throttle body (bonnet up, intake hose off, throttle plate gently wiped with appropriate throttle cleaner) can smooth idle and prevent sticky operation. Avoid forcing the plate by hand, and don’t flood the housing with solvent.

• Common symptoms of TPS issues: erratic idle, hesitation off the mark, poor fuel economy, sudden cruise control cancellation, and a check engine light with codes like P0120–P0124 or P2135.
• Quick checks: inspect the throttle body connector for corrosion, verify good battery voltage (low voltage can trigger throttle faults), and read live data with a scan tool to confirm TPS tracks move smoothly and agree with each other.
• Replacement tips: because the sensor is usually non-serviceable separately, the fix is commonly a complete throttle body assembly. After fitting, a throttle/idle relearn is required using a suitable scan tool (MUT-III or equivalent). Some workshops also perform a battery-off reset followed by a warm-up and idle stabilisation procedure, but a proper adaptation via scan tool is best.

If the vehicle’s done big kilometres or has a history of intake contamination, pairing a throttle body clean with fresh air filter and checking for vacuum leaks can save headaches. When in doubt, a professional diagnostic with factory-level software quickly confirms whether the TPS or another sensor (like the accelerator pedal sensor or MAF) is the real culprit.

Does a 2008 Mitsubishi Outlander have a throttle position sensor?

Yes. Technical materials for the 2008 Outlander show an electronic throttle body with dual built-in throttle position sensors, plus a separate accelerator pedal position sensor. These work together to provide accurate throttle control and redundancy.

What are the signs the TPS is failing on this model?

Drivers often notice rough or high idle, flat spots on take-off, cruise control dropping out, and a check engine light. Fault codes such as P0120–P0124 or P2135 are common. If the ECU sees mismatched TPS signals, it may trigger limp mode to protect the drivetrain.

Can the TPS be cleaned, or does the throttle body need replacing?

The TPS itself is typically non-serviceable on the 2008 Outlander because it’s built into the throttle body. Cleaning the throttle bore and ensuring the connector is clean can help. If faults persist, replacement of the throttle body and a proper throttle/idle relearn with a scan tool are recommended.