Parts for your 2007 Toyota Blade-Throttle position sensors

2007 Toyota Blade throttle-position-sensors (TPS) — what they do and how to look after them

Based on Toyota’s technical literature for the E150-series Blade (ETCS‑i section of the Repair Manual) and the Toyota Electronic Parts Catalogue, the 2007 Toyota Blade does use throttle-position-sensors. They’re integrated into the electronic throttle body assembly (listed as “Throttle Body Assy with Motor”), rather than being a separate, bolt‑on sensor like older cable-throttle setups. The system uses dual-track TPS signals on the throttle body (often labelled VTA1/VTA2) and a separate accelerator pedal position sensor at the pedal. Related factory DTCs include P0120–P0123, P0220–P0223 and P2135, confirming the TPS’s role on both 2AZ‑FE (2.4L) and 2GR‑FE (3.5L) Blade models.

For owners, that means the TPS is very much part of the picture, but it’s baked into the throttle body. The job of the TPS is to tell the engine ECU exactly where the throttle plate is, so fuelling, ignition timing and idle control can be spot‑on. In the Blade’s drive‑by‑wire setup, accurate TPS data keeps the car smooth off the line, holds a steady idle, and prevents those annoying flat spots or limp‑mode moments.

As part of regular servicing, the smart play is prevention. Keep the throttle body clean so the sensor and motor aren’t fighting sticky carbon. Use a MAF‑safe throttle cleaner and avoid drowning the electronics, the TPS isn’t a separate serviceable item, so harsh solvents or prying at the blade can spell grief. Many shops also perform an idle learn or throttle initialisation after cleaning or battery disconnection, as recommended in Toyota service procedures.

If diagnostics point to TPS faults—like inconsistent VTA tracks or correlation errors—the fix on a 2007 Blade typically means replacing the throttle body assembly and gasket, rather than a stand‑alone sensor. A scan tool is used to confirm live data (both TPS tracks, pedal sensor agreement) and to check for DTCs such as P2135. After replacement, performing the ECU’s throttle/idle relearn with a capable scan tool (e.g., Techstream) helps the Blade settle into a stable idle without drama.

Common signs it’s time for attention include erratic idle, hesitation, cruise control drop‑outs, poor fuel economy, and the MIL glowing. Left too long, it can tip the ECU into failsafe. Getting in early usually means a quick clean, a learn procedure, and everyone’s happy. When the tracks are worn or the motor’s tired, swapping the throttle body is the reliable, factory‑approved route.

• Service tip: don’t force the throttle plate by hand, it’s motor‑driven.
• Check live TPS data for smooth, linear movement with no dropouts.
• After work under the bonnet, complete the idle/throttle learn so the ECU doesn’t chase its tail.

Popular questions about 2007 Toyota Blade throttle-position-sensors

Does the 2007 Blade have a separate TPS I can replace on its own?

No. On the 2007 Blade, the TPS is integrated into the electronic throttle body. If the sensor fails, Toyota’s repair approach is to replace the throttle body assembly. The accelerator pedal has its own position sensor too, but that’s a separate pedal module.

What symptoms point to a dodgy TPS on a Blade?

Look for rough or high idle, hesitation, surging, sudden limp‑mode, and cruise control cutting out. The check engine light will often log codes like P0120–P0123 or P2135. A scan of the two TPS tracks should show smooth, matching signals, dropouts or mismatches are a giveaway.

Can cleaning or calibration fix TPS issues, or is replacement the only option?

Light carbon build‑up can be sorted with careful throttle‑body cleaning and an ECU idle/throttle relearn. If the sensor tracks are worn or the signals don’t correlate, cleaning won’t rescue it—replacement of the throttle body assembly is the reliable fix.