Parts for your 2009 Nissan Navara-Throttle position sensors

2009 Nissan Navara throttle-position-sensors (TPS)

Technical sources confirm the 2009 Nissan Navara does use throttle-position sensing. The Nissan Navara D40 Factory Service Manual (2009, EC/Engine Control section) documents dual throttle-position sensors integrated into the electronic throttle body on the VQ40DE petrol, and a throttle valve position sensor within the intake air throttle assembly on the YD25DDTi diesel. The same manuals also outline the accelerator pedal position (APP) sensors, which the ECM cross-checks with TPS signals.

The throttle-position-sensor on a 2009 Navara is a key input the engine control module relies on to know exactly how far the throttle is opened. On the petrol VQ40DE, it’s built into the electronic throttle body (drive‑by‑wire) and typically uses dual tracks for redundancy. On the YD25DDTi diesel, the intake air throttle’s position sensor helps manage EGR flow, smooth shutdown and emissions control, while the ECM also monitors the accelerator pedal sensors for driver demand. Together, these signals steady idle, sharpen throttle response, cue transmission shift strategy, and keep cruise control and traction systems behaving under the bonnet and underfoot.

As part of regular servicing of your 2009 Navara, it’s smart to check live data for TP% and its agreement with APP sensors, especially if there’s surging, flat spots, limp mode, erratic idle, or fault codes like P0120–P0123/P2135. Because the TPS is integrated, replacement usually means swapping the complete throttle body (petrol) or the intake throttle assembly (diesel). After replacement or cleaning, perform a throttle/idle relearn with a suitable scan tool (Nissan CONSULT or a capable aftermarket unit) so the ECM can recalibrate. Skipping the relearn can leave the ute idling poorly or hunting.

Under the bonnet, avoid forcing the throttle plate by hand, let the motor drive it. For petrol models, a gentle throttle-body clean can help, but don’t drown the electronics and only use sensor‑safe cleaner. On diesels, look for oil and soot building up around the throttle and EGR plumbing and sort any vacuum or wiring issues before condemning the sensor. Intermittent faults often trace back to a tired connector or chafed loom rather than the sensor itself.

A quick check each major service—say every 20,000–30,000 kilometres—keeps small drivability niggles from turning into big headaches. If a new unit’s needed, choose quality parts, fit with care, and finish with that all-important relearn to keep the Nav ticking along sweet as.

• Typical symptoms: hesitation, uneven idle, poor fuel economy, cruise control drop-out, limp mode, TPS/APP correlation codes.
• Best practice: inspect wiring, verify with scan data, clean sensibly, replace the integrated assembly if out of spec, then relearn.

Does a 2009 Navara diesel have a TPS?

Yes. While diesels don’t meter power with a traditional throttle like petrol engines, the YD25DDTi has an intake air throttle valve with a built‑in position sensor. The ECM uses it to control EGR flow, smooth shutdown and emissions, and to coordinate with accelerator pedal sensors.

Where is the TPS located on a 2009 Navara?

On petrol VQ40DE models it’s integrated into the electronic throttle body on the intake. On YD25 diesels it lives inside the intake air throttle assembly near the EGR/charge pipework. It’s not typically a separate, bolt‑on sensor.

Do I need a relearn after replacing or cleaning the throttle body?

Yes, a throttle/idle relearn is recommended. After the throttle body or intake throttle assembly has been replaced or cleaned, use a capable scan tool to perform the procedure so the ECM can set the correct stop and airflow values. That prevents rough idle and stalling.