Parts for your 2000 Toyota Echo|yaris-Camshaft sensor

2000 Toyota Echo/Yaris camshaft sensor – what it does and when to service it

Yes, the 2000 Toyota Echo/Yaris does use a camshaft position sensor. Toyota’s factory technical literature confirms this: the Engine Control (EC) section of the Toyota Echo/Yaris Repair Manual for the 1NZ‑FE (1.5L) and 2NZ‑FE (1.3L) engines specifies a camshaft position signal (often labelled “G”/“G2”), the 2000 Electrical Wiring Diagram shows the “Camshaft Position Sensor” feeding the ECM, and Toyota’s New Car Features for VVT‑i describes the need for a cam phase signal to manage variable valve timing and sequential fuel injection.

On these Echo/Yaris models, the camshaft sensor tells the engine computer exactly where the cam is in its rotation. That lets the ECM fire the injectors in sequence, sync spark events cleanly and control VVT‑i. If the sensor goes out, the car can still run in a limp strategy using the crank sensor, but it’ll crank longer to start, lose that crisp throttle feel, and likely trigger a check engine light with codes like P0340 or P0343. Fuel economy can drop and VVT‑i may be disabled.

The sensor lives on the cylinder head, timing chain end, under the plastic engine cover. It’s a small Hall‑effect sensor sealed by an O‑ring and held with a 10 mm bolt. It bathes in engine oil, so clean oil helps keep it happy. There’s no scheduled replacement interval, it’s a “replace on condition” item. As part of regular servicing, it’s smart to glance for oil weeps at the O‑ring, check the connector for a green crust or broken locking tab, and make sure the loom hasn’t gone brittle near the heat of the head.

Replacement is a straightforward driveway job for most owners: disconnect the battery, pop the cover, unplug the connector, remove the bolt, and twist the sensor out. Lightly oil the new O‑ring, seat the new sensor, nip the bolt to spec (don’t overdo it), reconnect and clear any fault codes. If a fresh sensor doesn’t clear a cam signal fault, inspect the wiring back to the ECM and verify engine oil level and condition, sludging can slow VVT‑i response and confuse diagnostics.

Tips they’ll appreciate: use a quality genuine or OEM‑equivalent sensor, avoid mixing up the cam sensor plug with the nearby VVT‑i oil control valve plug, and keep to timely oil changes—good oil keeps both the sensor and VVT‑i gear drama‑free over big kilometres.

• Common symptoms: hard starting, rough idle, hesitant take‑off, poorer economy, MIL on (P0340/P0343).
• Tools: 10 mm socket, small ratchet, contact cleaner, scan tool to confirm cam sync after fitting.

Technical references: Toyota Echo/Yaris Repair Manual (EC section, 1NZ‑FE/2NZ‑FE), Toyota Electrical Wiring Diagram (2000, NCP10/NCP12), Toyota New Car Features (VVT‑i system description).

Popular questions

Where is the camshaft sensor on a 2000 Echo/Yaris?
It’s on the cylinder head at the timing chain end (driver’s side on RHD cars), just below the top cover. Remove the plastic engine cover and you’ll see a small sensor with one bolt and a two‑pin plug. Access is tight but it’s an easy reach with a 10 mm socket.

Can the car run with a bad camshaft sensor?
Usually, yes—but not happily. The ECM will default to a backup strategy using the crank sensor, which means longer cranking, lazier throttle response and a check engine light. It’s fine to limp to the workshop, but best to fix it promptly to avoid poor economy and patchy drivability.

Do the 1.3 and 1.5 engines use the same sensor?
They use a very similar camshaft sensor, but part numbers can vary by market and build date. Always check by VIN or engine code to make sure the connector style and O‑ring spec match before ordering.