Parts for your 2008 Toyota Camry-Throttle position sensors

2008 Toyota Camry throttle position sensor (TPS)

Yes, the 2008 Toyota Camry does use a throttle position sensor, and it’s absolutely relevant to how the car runs. According to Toyota’s Repair Manual for 2007–2011 Camry (2AZ‑FE 2.4L and 2GR‑FE 3.5L) and Toyota’s Technical Information System (ETCS‑i section, “Throttle Body with Motor Assembly”), the TPS is built into the electronic throttle body as dual sensors. It’s non‑adjustable and generally not sold separately from the throttle body. Related fault diagnostics in the same sources list DTCs such as P0120–P0124, P0220 and P2135 for TPS range/correlation issues, confirming its role on this model.

On this Camry, the TPS monitors the actual throttle plate angle and feeds the engine control module (ECM) the position signal so it can meter fuel, manage ignition timing and control idle. The car is drive‑by‑wire (ETCS‑i), so alongside the TPS in the throttle body there’s a separate accelerator pedal position sensor on the pedal. The ECM cross‑checks both sets of signals for safety and smooth response.

As part of regular servicing, the TPS itself doesn’t have a set replacement interval, but it pays to keep the throttle body clean and the connector/loom healthy. If the car shows the check‑engine light, drops into limp mode, idles roughly, or feels doughy on take‑off, it’s worth scanning for codes and checking live data.

• Common clues: MIL on with P0120–P0124, P0220 or P2135, erratic idle, poor fuel economy, harsh or lazy shifts (on autos) due to incorrect load signalling.
• Quick checks: Inspect the throttle body connector for corrosion or broken wires, ensure the intake hose is sealed, and view VTA1/VTA2 signals on a scan tool for smooth, matching increase from closed to open throttle.
• Cleaning: With the bonnet up and battery disconnected, remove the intake duct and gently clean the throttle bore and plate using throttle‑body‑safe cleaner and a lint‑free cloth. Don’t force the plate by hand and don’t soak the motor/sensor area.

If the TPS is faulty, the fix is typically a complete throttle body replacement with a new gasket. Refit, torque to spec per the Toyota manual, reconnect, and allow the ECM to relearn idle by letting the engine reach operating temperature and idle for several minutes, then taking a short, gentle drive. There’s no manual adjustment on this setup. For most owners in Australia and New Zealand, a simple clean every 60,000–100,000 km and a careful look at the wiring during services will keep the Camry’s throttle response crisp and trouble‑free.

FAQs

Does a 2008 Camry have a separate, replaceable TPS?
Toyota integrates the TPS into the electronic throttle body on the 2008 Camry (both 2AZ‑FE and 2GR‑FE). It’s factory‑set and non‑adjustable, so if the TPS fails, the usual repair is replacing the throttle body assembly. This setup is documented in Toyota’s Camry Repair Manual and TIS under ETCS‑i components and diagnostics.

How can someone tell if the TPS is on the way out?
Look for a check‑engine light with codes like P0120–P0124, P0220 or P2135, along with rough idle, throttle hesitation, or limp mode. A scan tool should show smooth, consistent throttle angle signals. Any dead spots, spikes or mismatched dual signals point to a TPS/throttle body or wiring fault.

Is reprogramming needed after replacing the throttle body?
Usually, no special coding is required. After installation, let the engine idle to operating temperature and take a gentle drive so the ECM can relearn airflow and idle. Some workshops use a scan tool to perform an idle learn/reset, but it’s often not mandatory on this model.