Parts for your 2007 Nissan Primera-Throttle position sensors

2007 Nissan Primera throttle-position-sensors

Based on Nissan’s P12 factory service manual (EC section), the 2007 Nissan Primera uses an Electronic Throttle Control system in which the throttle-position-sensor is integrated into the throttle body assembly. Technical references such as Autodata, Bosch ESI[tronic], and the Haynes Primera manual also describe the throttle plate position being monitored by dual sensors inside the electronic throttle body on petrol variants (QG18DE/QR20DE). The 2.2 diesel (YD22) doesn’t use a throttle plate to meter engine load, but it still employs a throttle valve/position sensor for EGR and shutdown control. So yes—this model is fitted with throttle-position-sensors.

On the 2007 Nissan Primera, the throttle-position-sensor (TPS) tells the engine control module exactly how far the throttle plate is open. That info is crucial for smooth take-offs, crisp acceleration, stable idle, and keeping emissions in check. In the Primera’s drive-by-wire setup, a pair of TPS tracks in the throttle body work alongside the accelerator pedal position sensors to cross-check each other—handy for safety and for keeping the tune spot-on. When the TPS data goes missing or messy, the car can feel doughy, surge, or drop into limp mode, and the dash may light up with codes like P0121–P0123 or P2135.

Servicing-wise, there’s no routine replacement interval for throttle-position-sensors, but a bit of preventative care goes a long way. Keeping the throttle body clean is key—carbon build-up around the butterfly can throw off the “closed” reading. A careful clean every 40,000–60,000 km using throttle-body-safe cleaner is a smart add-on during regular servicing. Don’t flood the electronic side or soak it, a light, targeted clean does the trick. Also check the connector for moisture or green crusties and make sure the earths are tidy.

On most 2007 Primeras, the TPS is part of the electronic throttle body and isn’t sold separately. If the sensor tracks fail or readings don’t agree, the correct fix is typically a complete throttle body replacement. After fitting, a throttle/idle relearn is required—either with a capable scan tool or using the factory pedal procedure—so the ECU knows the new closed and open angles. Skipping that step can leave the idle high or hunting. For earlier or cable-throttle variants (rare in this year), a bolt-on TPS may exist, but it’s best to confirm by VIN before ordering bits.

Choosing a quality OEM or reputable aftermarket unit helps avoid dramas. Expect to replace the gasket, follow torque specs, and avoid over-tightening. A short road test with live data is a good shout to confirm the throttle angle matches pedal input and that trims and idle look healthy. It’s the sort of tidy-up that keeps the Primera driving sweet and saves a fail on a WOF or rego inspection due to an engine light.

• Common symptoms of a crook TPS: hesitant acceleration, erratic idle, poor fuel economy, limp mode, and EPC/engine lights with TPS correlation codes.
• Good practice: clean throttle body, inspect wiring/connectors, and perform throttle relearn after any work.

Popular questions

Does a 2007 Nissan Primera actually have a throttle-position-sensor?
Yes. Petrol models use an electronic throttle body with dual throttle-position-sensors inside. The diesel uses a throttle valve position sensor for EGR/shutdown duties. It’s not usually a separate bolt-on sensor in this year—most are integrated into the throttle body.

Can the TPS be replaced on its own, and what does it cost?
On most 2007 Primeras the TPS isn’t serviceable on its own, the fix is to replace the whole throttle body. Parts pricing varies by brand, but owners in Australia and New Zealand typically see a few hundred dollars for quality aftermarket to higher for genuine, plus around 1–2 hours labour. A throttle/idle relearn is required after replacement.

What fault codes and symptoms point to a bad TPS?
Common codes include P0121–P0123 (TPS range/performance) and P2135 (throttle/pedal correlation). Symptoms are flat spots, surging, unstable idle, stalling at lights, poor fuel economy, or limp mode. If cleaning the throttle body and checking the connector doesn’t help, further diagnosis with live data usually confirms a failing sensor track in the throttle body.