Parts for your 2006 Ford Fiesta-Throttle position sensors

2006 Ford Fiesta throttle position sensor: purpose, service and advice

According to Ford’s workshop information (ETIS/TIS for Fiesta 2002–2008) and independent manuals such as Haynes and Autodata for the same model years, the 2006 Ford Fiesta is fitted with a throttle position sensor (TPS). On cable-throttle variants the TPS is a separate sensor mounted on the throttle body, while on models with electronic throttle control (ETC) the throttle body houses dual-track TPS elements and the sensor is integral to the unit.

The TPS tells the Fiesta’s engine computer exactly how far the throttle plate is open. That signal is used to manage fuelling, ignition timing and, on ETC cars, the motorised throttle angle. When the TPS goes out of whack, drivers may see a check engine light, uneven idle, flat spots on take-off, limp-home behaviour, or higher fuel use. Common fault codes include P0120–P0123 and P2135.

There’s no fixed replacement interval for a TPS on a 2006 Fiesta, but it should be checked whenever drivability issues crop up or as part of a broader intake/throttle body service. Owners keen to keep their Fiesta feeling perky can:

• Inspect the TPS connector and wiring for corrosion, broken tabs or chafing under the bonnet.
• Clean the throttle body with a sensor-safe cleaner at service time. On ETC models, don’t force the throttle plate by hand.
• Scan for live data, a healthy TPS shows a smooth percentage sweep from closed to wide open with no sudden jumps.

If the car has a cable throttle, the TPS is usually replaceable on its own with two screws and an O-ring. Mark the original position, fit the new unit onto the throttle shaft flats, tighten evenly, clear codes and verify a smooth sweep. On ETC models, the TPS is part of the throttle body, replacement means swapping the assembly, fitting a new gasket, and performing an idle/throttle relearn with a scan tool or a prescribed key-on/idle procedure from the workshop manual. After any work, it’s smart to check for air leaks, confirm idle speed, and road-test for crisp response.

Quality parts matter. Using an OE or reputable brand sensor helps avoid repeat faults and annoying drivability gremlins, especially in Aussie and Kiwi conditions where heat and dust can be rough on under-bonnet electrics.

• Where is the TPS on a 2006 Ford Fiesta?
  The TPS sits on the throttle body. On cable-throttle cars it’s a small, separate sensor on the spindle. On ETC models it’s built into the throttle body housing and isn’t serviced on its own.
• What are the signs of a failing TPS on this Fiesta?
  Uneven idle, hesitation, surging at steady cruise, poor kickdown, higher fuel use, and the MIL on. Scan tools often reveal codes like P0121–P0123 or P2135, and live data may show erratic throttle percentage.
• After replacing the TPS or throttle body, does it need programming?
  Many ETC cars require a throttle/idle relearn. A scan tool is best, but some models accept a key-on/engine-off cycle followed by a controlled idle period. Always follow the workshop manual procedure to avoid a lumpy idle.