Parts for your 2005 Nissan Navara-Throttle position sensors

2005 Nissan Navara throttle position sensor (TPS)

Based on Nissan factory service manuals and recognised technical references, the 2005 Navara range does use a throttle position sensor. Petrol variants (KA24DE and VQ40DE) have a TPS on the throttle body (Nissan EC/Engine Control sections, 2005–2007). The D40 YD25DDTi diesel uses an electronically driven intake throttle (throttle control actuator) with an integrated position sensor monitored by the ECM (Nissan D40 EC section, Bosch EDC16 application notes used on YD25). Note: some D22 3.0 diesels of the era don’t use a conventional throttle plate for power control, relying instead on an accelerator pedal position sensor, where fitted, any intake throttle valve still reports position to the ECM rather than acting as a driver-controlled throttle.

On a 2005 Navara that’s fitted with one, the TPS tells the engine computer exactly how far the throttle plate (or intake throttle valve on diesels) is open. That signal is used to fine-tune fueling, ignition timing (petrol), EGR and idle control, keeping the ute smooth, punchy and efficient whether it’s hauling gear or cruising the motorway. If the TPS goes out of spec, the ECM can throw the Navara into limp mode, the idle may hunt, fuel use can climb, and throttle response can feel doughy or jumpy.

Servicing-wise, the TPS is an electronic sensor and doesn’t have a routine replacement interval. During regular services, it’s smart to:

• Scan for fault codes (look for P0120–P0123, P2135, or throttle actuator codes on YD25).
• Inspect the connector and loom for corrosion, oil creep or chafing under the bonnet.
• On cable-throttle petrols, check throttle body cleanliness and baseline idle learn. Avoid forcing the sensor—no twisting against the stops.
• On YD25 diesels, ensure the throttle control actuator isn’t gummed up with EGR soot, clean the bore carefully without flooding the electronics.

Replacement is straightforward on most petrol Navaras: disconnect the battery, unplug the connector, remove the fixing screws, swap the sensor, and perform an idle/throttle relearn with a scan tool or key cycle procedure. For YD25 diesels, the position sensor is integrated into the throttle control assembly, replacement typically means changing the whole actuator and carrying out a proper relearn with a capable scan tool. Always use quality parts, torque to spec, and verify live data shows a smooth, linear throttle signal from closed to wide open. A quick road test to confirm clean take-off and steady idle finishes the job nicely.

Popular questions

Where is the TPS on a 2005 Navara?
On petrol models, it’s mounted on the side of the throttle body at the intake manifold. On D40 YD25 diesels, the position sensor is built into the throttle control actuator on the intake tract, usually near the EGR plumbing. If you’ve got a late D22 diesel without a conventional throttle, you’ll be looking at an accelerator pedal sensor instead.

Do TPS faults always mean the sensor is dead?
Not always. Wiring corrosion, loose grounds, and dirty throttle bodies can mimic a bad TPS. Rule those out first, then check live data for smooth voltage change. If the signal drops out or spikes as the throttle moves, the sensor or actuator assembly is likely due for replacement.

Does a replacement need calibration or relearn?
Yes. After fitting, most Navaras need an idle air volume learn or throttle position relearn. A scan tool is best, though some petrol models support a manual key-and-pedal sequence. Skipping this step can leave you with high idle, stalling, or lazy throttle.