Parts for your 2010 Toyota Fortuner-Throttle position sensors

2010 Toyota Fortuner throttle position sensor (TPS): what it does and how to look after it

Based on Toyota workshop literature (TIS repair manuals for 2TR-FE, 1GR-FE, 1KD-FTV and 2KD-FTV engines), the Toyota Electronic Parts Catalogue, and Denso throttle body specifications, the 2010 Toyota Fortuner does use a throttle position sensor. On the petrol engines (2TR‑FE 2.7L and 1GR‑FE 4.0L), the TPS is a dual-track sensor integrated into the electronic throttle body (ETCS-i). On the diesel engines (1KD‑FTV 3.0L and 2KD‑FTV 2.5L), there’s an electronically controlled throttle/air control valve used for EGR management and smooth shutdown that also contains a position sensor. Note this is separate from the accelerator pedal position sensor. So, yes—TPS is relevant on the 2010 Fortuner, but it’s usually part of the throttle body assembly rather than a stand-alone bolt-on switch.

In everyday terms, the TPS tells the engine computer exactly how far the throttle plate is open. That signal shapes fuel delivery, ignition timing and idle behaviour, helping the Fortuner pull cleanly from low revs and cruise efficiently on long Kiwi and Aussie roads. Toyota uses two sensor tracks inside the throttle body for redundancy, which is why scan tools often report “sensor 1” and “sensor 2”.

As part of routine servicing, it’s smart to keep the throttle body clean and the TPS happy. A light clean of the throttle bore and plate with throttle body cleaner every 40–60,000 kilometres can prevent sticky operation. Don’t drown the electronics—aim for the metal bore and plate, not the actuator housing. Check the throttle body gasket and the intake duct for air leaks, and make sure the connector and harness aren’t chafed. If an engine light appears with codes like P0120–P0124 or P2135, or you notice erratic idle, throttle lag, surging, poor economy or limp mode, a TPS/throttle body check is on the cards.

On most 2010 Fortuner variants, the TPS isn’t sold separately—replace the throttle body (petrol) or the throttle/air control valve assembly (diesel). Use a quality gasket or O‑ring, torque the fasteners evenly, and avoid forcing the plate by hand. After replacement, perform throttle/idle learning with a scan tool (Toyota Techstream is ideal) so the ECU relearns the closed position and idle air volume. Some models will relearn after a key-on cycle and a short drive, but a proper calibration saves headaches. If you’re DIY’ing it under the bonnet, disconnect the battery to protect the electronics and verify the fix with a road test and a fresh scan. Looking after this little sensor pays off with smoother take-offs, better fuel use, and fewer surprises out bush or on the motorway.

• Common signs: erratic idle, hesitation, high fuel use, harsh kickdown, check engine light (e.g., P0120–P0124, P2135).
• Good practice: clean throttle body, inspect wiring/plugs, use OE-spec parts, perform throttle relearn.

FAQs

Does a 2010 Toyota Fortuner have a throttle position sensor?

Yes. Toyota’s service manuals and parts catalogues show a dual-track TPS integrated into the electronic throttle body on petrol models, and a position sensor within the diesel throttle/air control valve. It’s not usually a separate bolt-on sensor like older cable-throttle setups.

What are the symptoms of a failing TPS on a 2010 Fortuner?

Drivers might see a check engine light, sluggish throttle response, erratic idle, stalling on coast-to-stop, sudden limp mode, or poor fuel economy. Scan tools often show codes such as P0120–P0124 or P2135 when the two tracks disagree or the signal is out of range.

Can the TPS be replaced separately or is it part of the throttle body?

On most 2010 Fortuner engines it’s part of the throttle body (petrol) or the diesel throttle/air control valve. If the sensor fails, the assembly is typically replaced as a unit. After fitting, carry out a throttle/idle relearn with a suitable scan tool to ensure smooth operation.