Parts for your 2001 Nissan Navara-Throttle position sensors

2001 Nissan Navara throttle position sensor (TPS)

On the 2001 Nissan Navara (D22), a throttle position sensor is indeed used. Factory references including the Nissan D22 Factory Service Manual (2001, Engine Control section for KA24DE and VG33E) specify a TPS on petrol engines, while diesel variants (such as YD25DDTi) use a throttle control valve with a built-in position sensor and an accelerator pedal position sensor to manage airflow for EGR and smooth shutdown. Nissan’s FAST parts catalogue for the 2001 Navara also lists a TPS for petrol throttle bodies. So, whether it’s petrol or diesel, the vehicle relies on throttle position feedback as part of engine management.

What does the TPS do? It reports the throttle opening to the engine control unit (ECU) so fuelling, ignition timing, idle control and, on some models, auto transmission behaviour are spot on. On diesels, the throttle valve sensor helps coordinate EGR and deceleration control. When the TPS drifts out of spec or goes open-circuit, the ute can feel doughy off the line, surge at cruise, idle roughly, or throw engine lights.

Typical signs of a crook TPS include:

• Hesitation, flat spots, or erratic idle
• Harsh or odd shifts (auto)
• Higher fuel use and a lack of grunt
• Fault codes like P0120–P0123, P0220, or correlation codes on drive-by-wire setups

As part of regular servicing, it’s smart to inspect the connector for corrosion, check the harness where it passes near the throttle body, and verify smooth operation via a scan tool (watching live data) or a multimeter for a clean, linear sweep from closed throttle to wide open. On petrol Navaras, the TPS may be slotted for fine adjustment, set closed-throttle and WOT values to the spec in the Nissan D22 FSM. If replacing the sensor, go for an OEM or reputable OE-equivalent unit, clean the throttle body while you’re there, and ensure the sealing and screws are snug.

After replacement or adjustment, perform the required ECU procedures: throttle/accelerator position relearn and, on petrol engines, idle air volume learn. Many scan tools can run these, or follow the FSM timing-based pedal/ignition sequence. Finish with a road test under varied loads to confirm the ute drives cleanly, shifts nicely and doesn’t relight the MIL. Done right, a healthy TPS keeps the Navara feeling crisp and predictable across Aussie and Kiwi roads.

Popular questions

Does a 2001 Navara diesel have a TPS?
Diesel D22 models don’t use a traditional petrol-style TPS for fuelling, but they do use a throttle control valve with a position sensor and an accelerator pedal position sensor. The exact setup varies by engine code, so it’s best to confirm by VIN or checking the D22 FSM section for your engine.

What are common TPS fault codes on a D22?
Expect codes like P0120–P0123 (TPS circuit range/performance, low, high) and P0220. Drive-by-wire variants can also show throttle/accelerator correlation codes. Always test wiring and connectors before calling the sensor.

Do I need an idle or throttle relearn after TPS replacement?
Yes. After fitting or adjusting, carry out throttle/accelerator relearn and, for petrol engines, idle air volume learn. Using a capable scan tool is easiest, though the FSM details manual procedures. Skipping this can leave the idle shaky or throttle response off.