Parts for your 2013 Holden Commodore-Throttle position sensors

2013 Holden Commodore throttle position sensors

Referencing Holden/GM service information for VE Series II and VF Commodore (GM Global A platform) and GM diagnostic tooling (GDS2/TIS2Web), the 2013 Holden Commodore uses electronic throttle control with dual throttle position sensors integrated into the throttle body, plus accelerator pedal position sensors at the pedal. The TPS is therefore fitted and relevant, though it’s not a separate bolt-on sensor.

The throttle position sensors (TPS) in the 2013 Holden Commodore live inside the electronic throttle body. Working as a matched pair, they track the blade angle while the ECU compares both signals for safety. That live feedback lets the car meter air, fuel and spark smoothly, keeps idle stable, and delivers crisp response under the right foot. It also underpins traction control, cruise control and automatic transmission shift strategy, so when the TPS goes off, a lot of features can play up.

Common hints it’s unhappy include a flashing check engine light, reduced power mode, erratic idle, stalling when coming to a stop, lazy acceleration, or transmission flare because the engine load signal isn’t believable. Scan-tool data will usually show disagreement between TPS1 and TPS2, a stuck percentage, or codes like P0121–P0123, P0221–P0223, and P2101. Because the Commodore’s TPS is integral, replacement typically means fitting a complete throttle body rather than a separate sensor.

Maintenance is mostly about prevention. Keep the air filter fresh and make sure the intake ducting between the MAF and throttle isn’t split. If the blade gums up, use throttle-body safe cleaner and a lint-free cloth—no screwdrivers or harsh solvents. After cleaning or replacement, perform an idle/throttle relearn with a scan tool or follow the GM idle learn procedure so the ECU can reset the blade’s home position and airflow model.

When swapping the unit, disconnect the battery, relieve fuel vapours by opening the cap, then remove the intake tube and the four throttle bolts. Transfer the gasket if serviceable, torque the new body to spec, reconnect the plug, and clear codes. Genuine or quality aftermarket throttle bodies for VE/VF V6 and L77 V8 are plug-and-play. If faults persist, check pedal sensors, wiring, grounds and ECU updates with GDS2 because the system relies on matching signals end‑to‑end.

There’s no scheduled TPS replacement, but workshops often check throttle data and cleanliness every 30,000–45,000 km, especially for short‑trip cars. Use quality fuel and keep the PCV system healthy to curb deposits. Proactive checks during regular servicing are cheap insurance and keep the Commodore running sweet reliably daily too.

Does a 2013 Commodore have a separate TPS or is it built into the throttle body?

It’s built in. The 2013 VE/VF Commodore uses an electronic throttle body with dual TPS sensors inside, plus a separate accelerator pedal sensor at the pedal. If the TPS fails, the usual fix is replacing the complete throttle body assembly.

Do I need to program or relearn anything after replacing the throttle body?

Yes. Perform a throttle/idle relearn with a capable scan tool (GDS2 or equivalent) or follow the GM idle learn drive procedure. Clear fault codes, verify both TPS tracks agree, and confirm stable idle and proper throttle response.

What are the typical symptoms of a failing TPS/throttle body on a 2013 Commodore?

Limp-home/reduced power mode, erratic or high idle, stalling on decel, sluggish throttle, cruise control dropping out, and codes such as P0121–P0123, P0221–P0223, or P2101. Visual checks for intake leaks and throttle plate fouling should accompany scan-tool diagnostics.