Parts for your 2006 Ford Fiesta-Camshaft sensor

2006 Ford Fiesta camshaft sensor — what it does and when to replace it

Based on technical references, a camshaft position sensor is fitted and used on the 2006 Ford Fiesta. The Ford eTIS/Workshop Manual for Fiesta 2002–2008 (Section 303-14: Electronic Engine Controls) lists a Camshaft Position (CMP) sensor on the 1.25, 1.4 and 1.6 Duratec petrol engines, as well as the 1.4 TDCi diesel. Haynes Manual “Ford Fiesta 2002–2008 (Petrol & Diesel) No. 4187” and Autodata wiring diagrams also show the CMP circuit and location. That means the 2006 Fiesta sold in AU/NZ (WQ series, typically the 1.6 Duratec) relies on a camshaft sensor for normal operation.

On this model, the camshaft sensor feeds the ECU with the exact position of the camshaft so it can time fuel injection and ignition precisely from start-up. It helps with clean cold starts, smooth idle, decent fuel economy and lower emissions. If the signal goes missing or flaky, the ECU often falls back to a “limp” strategy using the crank sensor, which can bring on a check engine light, make it crank longer before starting, and cause rough running or a sudden stall at idle.

As part of servicing a 2006 Fiesta, the camshaft sensor doesn’t have a regular replacement interval—it’s a “replace when faulty” item—but a bit of preventative care goes a long way:

• Keep engine oil and filter changes up to date, sludgy oil and vapour can contaminate connectors.
• During services, give the CMP connector a quick visual once-over. Look for oil seepage, brittle wiring, or green/white corrosion on terminals.
• If you’ve got a scan tool, check for stored or pending P0340/P0341-type cam sensor codes and look at live data for an intermittent signal.

Replacement on the 1.6 Duratec is straightforward: disconnect the battery, unplug the sensor on the cylinder head near the timing end, remove the retaining bolt, and swap the sensor with a quality unit. Lightly oil the O-ring, seat it squarely, and tighten the bolt to spec per the workshop manual. Clear any fault codes and take it for a decent test drive. No special programming is usually required, the ECU will adapt on the fly.

If the Fiesta is hard to start, idles roughly, or stumbles on acceleration—and the check engine light’s on—having the camshaft sensor and its wiring tested with a proper diagnostic scan is a smart first step before chasing fuel or ignition parts.

Popular questions about 2006 Ford Fiesta camshaft sensors

Where is the camshaft sensor on a 2006 Fiesta?
It’s mounted on the cylinder head at the timing belt/chain end of the engine. On the 1.6 Duratec common in AU/NZ cars, look near the upper timing cover. You’ll see a small sensor with a single retaining bolt and a two- or three-pin plug.

What are the symptoms of a failing camshaft sensor on this model?
Common signs include longer cranking before it fires, a check engine light with P0340/P0341-type codes, rough idle, flat spots on acceleration, and the odd stall at idle. Sometimes it only plays up when hot, so intermittent faults are common.

Do I need to code the new camshaft sensor?
No special coding is typically required on the 2006 Fiesta. Fit the new sensor, clear any fault codes, and the ECU will learn the signal. If problems persist, check wiring, connector pins and the crank sensor as well.