Parts for your 2007 Holden Captiva 7-Throttle position sensors

2007 Holden Captiva 7 Throttle Position Sensors (TPS)

Based on GM Holden CG Captiva Service Information (SI) for the 2007 model year, the CG Workshop Manual (2006–2011), and the Bosch ME9.6 engine management used on the 3.2L Alloytec LY7 V6, this vehicle uses an electronic throttle body with dual throttle position sensors (redundant tracks inside the throttle body). On the 2.0L VCDi diesel (EDC16 management), there’s also a throttle valve assembly (anti‑shudder/intake air control) with a position sensor, and the accelerator pedal has its own position sensors. So, yes—throttle-position-sensors are relevant and fitted to the 2007 Holden Captiva 7.

On the petrol V6, the TPS units live inside the electronic throttle body and constantly report the throttle plate angle to the engine control module, helping manage airflow, idle speed, acceleration response, fuel delivery, and transmission shift strategy. On the diesel, the throttle valve position sensor helps the ECU control EGR flow and smooth shutdown. Either way, accurate throttle position feedback is key to smooth running and decent fuel economy.

There’s no fixed replacement interval for the TPS, they’re designed to last the life of the throttle body. As part of routine servicing—say every 20,000–30,000 km—it’s smart to:

• Scan live data to confirm TPS1/TPS2 agreement and a clean, linear sweep from closed to wide open.
• Inspect the throttle body and connector for oil vapour residue or corrosion, clean with throttle‑body safe cleaner (don’t force the plate by hand on drive‑by‑wire units).
• Check for fault codes like P0120–P0123 or P2135, rough idle, surging, sudden limp mode, or erratic cruise—classic TPS/throttle body clues.

If the sensor has failed on the petrol V6, it typically means replacing the complete throttle body, as the TPS is integrated and non‑serviceable. Use quality OEM‑spec parts, fit a new gasket if required, and ensure the harness isn’t chafed. After replacement, perform an idle/throttle relearn with a capable scan tool, some units will relearn with a short key‑on/engine‑off routine and a few minutes of idle, but a proper scan tool adaptation is the safe bet. For the diesel throttle valve, similar rules apply—verify position feedback and carry out the ECU adaptation after refit.

A quick win before condemning the part: clean the throttle body, check battery voltage health, and reseat the connector. Voltage drops and dirty plates can mimic TPS faults on these drive‑by‑wire systems.

Popular questions about 2007 Holden Captiva 7 throttle position sensors

Does the 2007 Captiva 7 have a TPS, even though it’s drive‑by‑wire?
Yes. The drive‑by‑wire throttle body on the 3.2L V6 contains dual TPS tracks for redundancy. The diesel has a throttle valve with a position sensor as part of emissions and shutdown control, plus pedal position sensors. Drive‑by‑wire still relies on position sensors—just packaged differently.

Can a dirty throttle body trigger TPS fault codes?
It can. Carbon and oil vapour buildup can cause the throttle plate to stick slightly, upsetting the expected TPS readings and idle control. Cleaning with throttle‑safe cleaner often restores stable readings. If codes return or the sensor tracks don’t agree, further diagnosis or replacement is needed.

Do I need a relearn after replacing the throttle body or TPS?
Usually, yes. The Captiva’s ECU needs to relearn throttle angle and idle control. A proper scan tool adaptation is recommended, though some cars will relearn after a key‑on cycle and a short idle period. Skipping this can leave the engine idling high, low, or popping back into limp mode.