Parts for your 2007 Toyota Wish-Throttle position sensors

2007 Toyota Wish — Throttle Position Sensor (TPS)

Yes, the 2007 Toyota Wish is fitted with a throttle position sensor. Toyota’s ETCS‑i (Electronic Throttle Control System–intelligent) used on the 1ZZ‑FE and 1AZ series engines in the Wish includes dual throttle position sensing built into the throttle body. This is documented across Toyota technical literature, including New Car Features (ETCS‑i overview for 1ZZ/1AZ), Toyota Repair Manual and EWD coverage for the ZNE/ANE10 series, and the Toyota Electronic Parts Catalogue, which lists the throttle body assembly as containing the throttle actuator and position sensors, typically not sold as a separate TPS unit.

The TPS on the 2007 Wish tells the engine computer exactly where the throttle plate is, so fuelling and ignition timing stay spot on. With ETCS‑i, the sensor setup is redundant (two tracks), improving safety and driveability. It works in tandem with the accelerator pedal position sensor to deliver smooth response, good economy and stable idle.

• Common clues it’s unhappy: erratic idle, flat spots, sudden limp mode, cruise control dropping out, and engine lights with codes like P0121–P0123, P0222/P0223 or P2135.
• Service-friendly checks: scan live data for throttle angle vs. pedal, confirm smooth, matching traces, inspect the plug and wiring for corrosion, and clean a gummed-up throttle bore.

Maintenance-wise, there’s no routine “adjustment” of the TPS on this model, it’s factory‑set within the throttle body. What does help is a careful throttle body clean every 40,000–60,000 kilometres, especially if it idles rough with the A/C on. Use a proper throttle‑body safe cleaner, don’t drown the electronics, and avoid forcing the plate open with the ignition on. After cleaning or battery disconnection, let the ECU relearn: key on for 10 seconds, then idle with all loads off for a few minutes until stable. A scan tool throttle/idle learn is even better if available.

If the TPS circuit fails or the two tracks disagree, the fix is typically a replacement throttle body assembly with a new gasket. It’s a straightforward spanner job: depressurise the cooling system if coolant lines run to the body, remove intake ducting, unplug the connector, swap the unit, torque fasteners evenly, refit hoses and perform an idle/throttle learn. Always clear codes and road test to confirm clean transitions and stable throttle angle data. Keep an eye on any oil mist from the PCV system, a catch can or timely PCV replacement helps keep the throttle clean and the TPS readings crisp. Done right, the Wish will idle neatly and pull smoothly without the surging or hesitation that a tired sensor setup can cause.

Popular questions about 2007 Toyota Wish TPS

Does a 2007 Toyota Wish have a separate, replaceable TPS?
It has throttle position sensors, but they’re integrated into the electronic throttle body. On most 2007 Wish variants, Toyota doesn’t sell the TPS separately, so the usual repair is replacing the complete throttle body assembly and performing an idle/throttle learn.

What symptoms point to a bad TPS on a Wish?
Expect erratic idle, hesitation off the line, cruise control dropping out, or limp mode. The check‑engine light may bring up P0121–P0123 or P2135. Before replacing parts, check for a dirty throttle bore and inspect the connector and wiring, as those can mimic a failing sensor.

Can cleaning fix TPS issues?
Cleaning won’t repair an electrically faulty sensor, but a dirty throttle plate can cause similar dramas. A careful clean often restores stable idle and smooth tip‑in. If fault codes persist or data shows jumpy throttle angle, the throttle body assembly is likely due for replacement.