Parts for your 2014 Nissan Pathfinder-Throttle position sensors

2014 Nissan Pathfinder throttle position sensors

According to the 2014 Pathfinder (R52) Nissan Factory Service Manual (EC section), this model uses electronic throttle control: the throttle body houses dual throttle position sensors (TPS) and a throttle control motor, while the accelerator pedal has its own position sensor. Nissan diagnostics (CONSULT-III Plus) and the DTC list for this vehicle (e.g., P0121–P0123, P0221–P0223, P2135) further confirm the TPS is fitted and monitored.

The TPS tells the engine control module exactly how far the throttle plate is open, letting it match airflow with fuel and ignition. On the R52 VQ35DE, the two TPS signals are constantly compared for safety, if they disagree, the car can drop into limp mode, flash the MIL, or log those throttle correlation codes.

For servicing, the TPS is not a separate, screw-off part, it’s integrated into the electronic throttle body. If the sensor fails or reads erratically, the practical fix is replacing the throttle body assembly and its gasket, then carrying out throttle closed-position and idle air volume learning using a scan tool or the approved Nissan procedure.

Good maintenance helps avoid grief. Under the bonnet, make sure the throttle bore is clean and the intake duct isn’t cracked. At regular services—say every 40–60,000 kilometres—inspect the connector for corrosion, ensure the wiring isn’t rubbing through, and clear any stored codes. When cleaning the throttle, use proper throttle-body cleaner and don’t force the plate.

Typical TPS-related symptoms on a 2014 Pathfinder include stumbling on take-off, hunting idle, sudden loss of power, or cruise control dropping out. If those pop up alongside codes like P0121 or P2135, it shouldn’t be driven hard. A failing sensor can make mixtures go lean or rich, and the ECM may limit throttle to protect the engine.

Home replacement is doable with basic spanners, but a scan tool that can run the relearn is needed. The battery is disconnected, the unit swapped, a new gasket fitted, bolts tightened evenly, the duct refitted, then the learns performed. If the light returns, a technician with Nissan CONSULT should check for harness faults or pedal sensor issues. OEM parts generally give the best results.

Where is the throttle position sensor on a 2014 Nissan Pathfinder?

On the R52, the TPS is integrated into the electronic throttle body on the intake plenum at the front of the engine bay. There are two TPS tracks inside the housing, it isn’t a separate bolt-on sensor.

Does the TPS require replacing the whole throttle body?

Yes, on this model the TPS is non-serviceable. If testing shows a TPS fault or correlation error, the remedy is usually a complete throttle body replacement with a new gasket, followed by throttle and idle learns. A wiring or pedal sensor fault should be ruled out first.

What relearn is needed after cleaning or replacing the throttle body?

The ECM needs Throttle Valve Closed Position Learning and Idle Air Volume Learning. These can be performed with a capable scan tool or using the Nissan timed-pedal method, the scan-tool route is more reliable. Without the learns, idle speed and tip-in response can be off.