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Parts for your 2005 Daihatsu Yrv-Throttle position sensors
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2005 Daihatsu YRV Throttle Position Sensor (TPS)
Yes, the 2005 Daihatsu YRV uses a throttle position sensor. Technical references including the Daihatsu YRV (M200/M201) Workshop Manual – Engine Electrical (EFI) and the Daihatsu K3‑VE/K3‑VET Engine Repair Manual (Daihatsu Motor Co./DENSO EFI documentation) specify a three‑wire potentiometer‑type TPS on the throttle body (signal often labelled VTA) to report throttle angle to the ECU.
On this YRV, the TPS is a key input for fuel delivery, ignition timing and automatic transmission shift logic. As the driver moves the pedal, the TPS feeds the ECU a smooth voltage sweep that translates to throttle opening. That lets the engine management add or trim fuel on the fly, crisp up acceleration, stabilise idle, and keep emissions in check. Both the 1.3 K3‑VE and the turbocharged K3‑VET variants rely on a TPS mounted to the throttle body, it works alongside the idle air control system and manifold pressure sensors to keep things tidy under the bonnet.
As part of regular servicing, it’s worth giving the throttle body a clean and checking TPS data on a scan tool. At closed throttle you should typically see a low percentage/voltage that rises smoothly to wide-open throttle with no dropouts. If the ECU sees flaky data, you’ll often get poor idle, hesitation off the line, hunting revs, higher fuel use, or a check‑engine light.
- Common signs of a crook TPS: erratic idle, flat spots on acceleration, harsh or late shifts (auto), and stored codes like P0120–P0123.
- Good practice: after battery disconnection or TPS replacement, perform an idle learn — let it idle warm with no loads, then a few minutes with A/C on.
Replacement is straightforward on cable‑throttle YRV models:
- Disconnect the battery.
- Unplug the TPS connector on the throttle body and remove the two retaining screws.
- Swap the sensor, aligning the tang with the throttle shaft. Don’t force it.
- Lightly tighten screws, some units allow minor rotational adjustment to set base voltage/angle.
- Reconnect, clear codes, and verify a smooth TPS sweep on a scan tool.
Use quality parts compatible with the K3‑series throttle body, keep connectors clean and dry, and check the throttle cable free play after any work. Done right, the YRV rewards with smooth drivability and better fuel economy.
Where is the TPS on a 2005 Daihatsu YRV?
It’s bolted to the side of the throttle body on the intake manifold, opposite the throttle cable linkage. You’ll see a small black sensor with a three‑pin connector. Access is under the bonnet, removing the intake duct makes it easier to reach.
What symptoms point to a failing TPS on a YRV?
Expect erratic idle, flat spots when taking off, surging at steady speed, higher fuel use, and a check‑engine light. On autos, shifts can feel late or abrupt because the ECU misreads throttle demand. A scan tool showing jumpy TPS percentage is a giveaway.
Does the TPS need calibration after replacement?
Many YRV units are set by aligning the sensor to a small witness mark or base voltage. After installation, perform an idle learn and confirm the closed‑throttle reading is within spec on a scan tool. If adjustable, a slight rotation can fine‑tune the base angle.
