Parts for your 2014 Nissan Pulsar-Throttle position sensors

2014 Nissan Pulsar throttle-position-sensors

The 2014 Nissan Pulsar (B17 sedan and C12 hatch, incl. SSS) does use throttle-position-sensors. Nissan’s factory Electronic Service Manual (EC section) for the Pulsar/Sylphy platform specifies an Electronic Throttle Control Actuator (the throttle body) containing dual throttle-position-sensors, and lists related diagnostic trouble codes such as P0121, P0122, P0123 and P2135. Parts catalogues and common workshop data sources (e.g., Autodata/Haynes) also show the throttle-position-sensor integrated into the throttle body on MRA8DE and MR16DDT engines. It’s not a separate, cable-driven or stand-alone TPS on this model.

On the 2014 Nissan Pulsar, the throttle-position-sensors live inside the electronic throttle body and constantly report the butterfly angle to the engine control unit. There are two sensors for redundancy, so the ECU can cross-check the signals for accuracy. That feedback is crucial for smooth take-off, steady idle, clean gear changes (especially on CVT models), decent fuel economy and emissions compliance. If the readings don’t add up, the car can go into a reduced-power “limp” mode and switch on the check engine light.

They’re not a scheduled replacement item, but they do benefit from sensible servicing. A clean throttle body helps the sensors read consistently and keeps idle quality sharp. At around 60,000–90,000 kilometres—or sooner if there’s a rough idle, hesitation or hunting—ask the workshop to inspect and, if needed, clean the throttle bore and plate. Use throttle-body-safe cleaner and avoid flooding the electronics. After cleaning or a flat battery, an Idle Air Volume Learn (throttle relearn) is often required with a scan tool or the Nissan pedal procedure, otherwise idle can be high or unstable.

If a sensor fault is confirmed (common codes include P0121–P0123 or P2135), the fix on a Pulsar is typically replacement of the throttle body assembly, because the sensors are built in. A trained tech will also check for vacuum leaks, harness damage, poor grounds and connector corrosion before calling the part. After fitting, they’ll perform the throttle relearn and clear codes. Labour time is modest, but genuine-quality parts and a fresh gasket are worth it for reliability.

Typical signs it’s time to investigate the throttle-position-sensors on a Pulsar:

• Erratic idle, stalling, or surging
• Flat spots, hesitation or poor take-off
• Check engine light with TPS-related codes
• Reduced power/limp mode

Look after the throttle body and its sensors, and the Pulsar rewards with smooth, economical motoring under Aussie and Kiwi conditions.

Popular questions about 2014 Nissan Pulsar throttle-position-sensors

Does a 2014 Nissan Pulsar have a throttle-position-sensor?
Yes. It uses an electronic throttle body that contains two throttle-position-sensors. They’re part of the Electronic Throttle Control system rather than a separate, stand-alone sensor.

How do you reset the throttle after cleaning or a flat battery?
A throttle/idle relearn is needed. Workshops usually use a scan tool to run Idle Air Volume Learn. There’s also a pedal sequence in the Nissan service manual, but it’s fussy about engine temp and timing. If the idle stays high or hunts after cleaning, book a relearn.

What symptoms point to a failing throttle-position-sensor on a Pulsar?
Common signs include rough or unstable idle, hesitation on tip-in, surging, reduced power mode and a check engine light—often with codes like P0121–P0123 or P2135. Before replacing parts, a tech should also rule out intake leaks and wiring issues.