Parts for your 2001 Nissan Primera-Throttle position sensors

2001 Nissan Primera throttle-position-sensor (TPS): purpose, servicing and replacement

According to Nissan’s own technical literature for the Primera P11 (’99–’01) and the later P12 (launched late 2001), as well as entries in the Nissan FAST electronic parts catalogue and mainstream service databases (Autodata/Alldata), the 2001 Nissan Primera does use a throttle-position-sensor. On early-2001, cable-throttle cars (e.g., SR20DE, QG18DE), the TPS is a bolt-on sensor on the throttle body. On late-2001 models with electronic throttle control (including many P12 petrols and the YD22DDTi diesel), the TPS function is integrated into the throttle actuator assembly. So, yes—this vehicle is fitted with a TPS, either as a separate unit or built into the electronic throttle body.

The throttle-position-sensor tells the ECU exactly how far the throttle plate is open. That data is crucial for fuelling, ignition timing, idle control, emissions strategies, and on autos, shift quality. When the TPS goes crook, expect rough idle, flat spots, hunting revs, harsh shifts, increased fuel use, or a check-engine light with codes like P0120–P0123 or P0222–P0223.

For cable-throttle 2001 Primeras, the TPS is usually replaceable and sometimes adjustable. If replacing, mark the old sensor’s position, fit the new one, and set the closed-throttle voltage to spec (often around 0.45–0.55 V with ignition on, engine off) using a multimeter, or follow the idle-switch continuity method in the factory manual. Nip up the screws gently (small M4/M5 fasteners are typically around 2–3 N·m) and don’t crack the housing. After refit, clear fault codes and verify live data under the bonnet.

On late-2001 electronic-throttle cars, the TPS element is integrated. If it fails, the fix is usually a complete throttle-body/actuator replacement. After installation, perform the Nissan relearn routines—Accelerator Pedal Released Position Learning, Throttle Valve Closed Position, and Idle Air Volume Learn—ideally with a capable scan tool. Skipping relearns can leave the idle high or unstable.

Maintenance-wise, the TPS isn’t a scheduled replacement item. During servicing, it’s smart to:

• Clean the throttle bore with a lint-free rag and MAF-safe cleaner (don’t flood the TPS).
• Inspect the connector for green crusties, bent pins, or broken locking tabs.
• Check harness routing so it doesn’t chafe on the intake or rocker cover.
• Scan for stored or pending TPS-related DTCs and confirm smooth, linear throttle angle in live data from 0% to 100%.

Done properly, a replacement or adjustment is a straightforward driveway job on cable-throttle cars, while electronic-throttle variants benefit from workshop-level tools to finish the relearn procedures. Either way, a healthy TPS keeps the Primera driving sweet and economical across Aussie and Kiwi roads.

Popular questions

Does a 2001 Nissan Primera have a throttle-position-sensor or is it drive-by-wire only?
Yes, it has a TPS in all cases. Early-2001, cable-throttle models use a separate bolt-on TPS, late-2001 electronic-throttle cars have the TPS function integrated inside the throttle actuator. Both styles report throttle angle to the ECU.

What fault codes and symptoms point to a bad TPS on a 2001 Primera?
Common codes include P0120–P0123 and P0222–P0223. Tell-tales are erratic idle, hesitation, poor fuel economy, harsh or late shifts on autos, and a check-engine light. Live data showing dead spots or jumpy throttle angle is another giveaway.

Does the TPS need programming or adjustment after replacement?
On cable-throttle cars, it may need a basic adjustment to a specified closed-throttle voltage and a check of the idle switch function. On electronic-throttle versions, replace the throttle body assembly and complete the Nissan relearn procedures (pedal released, throttle closed position, and idle air volume learn) with a scan tool.