Parts for your 2000 Mazda Premacy-Crank angle sensor

2000 Mazda Premacy crank angle sensor — what it does and how to look after it

Based on technical references, the 2000 Mazda Premacy (CP series) does use a crank angle sensor (commonly called the crankshaft position sensor, CKP). The Mazda Premacy CP Workshop Manual details CKP inspection and diagnostics, Mazda’s Global Service wiring diagrams for the CP show the CKP input to the engine control module, and the Mazda Electronic Parts Catalogue lists a dedicated crankshaft position sensor for the CP Premacy’s petrol FP-DE 1.8 and FS-DE 2.0 engines. Those sources establish the sensor is fitted and essential on this model.

On the 2000 Premacy, the crank angle sensor feeds the ECU precise crank speed and position so it can time spark and fuel. Without a clean signal, the engine may crank but not fire, stumble, or cut out unexpectedly. It’s a small magnetic/Hall sensor that reads a toothed trigger wheel on the crank, typically mounted at the front of the engine near the crank pulley/timing belt area under the bonnet.

It’s not a routine replacement item, but it’s smart to give it a once-over any time the timing belt is off or during major services around 100,000 km intervals. A quick visual check for oil contamination, damaged wiring or a loose mounting bolt can save a roadside drama. If the tip is fouled with metal fuzz or belt debris, clean it gently and inspect the harness for chafing.

• Common tell-tales of a failing crank angle sensor: long crank/no start, random stalling, misfire at higher revs, dead tachometer during crank, and fault codes like P0335/P0336.
• Best practice: keep the connector clean and latched, avoid bending the wiring near the plug, and address oil leaks that can wick along the loom.

Replacement on a Premacy is straightforward for a competent DIYer or any workshop:

1. Disconnect the battery and safely raise the front if access is tight behind the RH splash guard.
2. Remove the upper/lower plastic covers as needed to expose the sensor at the crank pulley/timing area.
3. Unplug the connector, remove the retaining bolt, and withdraw the sensor. Compare the new unit and O-ring (if fitted).
4. Install the new sensor, ensuring the air gap is to spec per the workshop manual, route the loom in the factory clips, and reconnect.
5. Clear any stored codes and perform an idle relearn if required.

Quality matters here. A genuine or reputable-brand sensor usually saves repeat faults. After fitting, a quick scan-data check to confirm steady CKP rpm signal is a nice finishing touch.

Where is the crank angle sensor on a 2000 Premacy?

On CP-series Premacy petrol engines it’s mounted at the front of the engine, reading a trigger wheel on or near the crank pulley/timing belt sprocket. Access is typically from above with the upper cover off, or through the RH wheel arch with the splash shield removed.

Do these sensors fail often, and what symptoms show up?

They’re generally reliable but age, heat and oil contamination can get to them. Expect hard starting, intermittent stalling, loss of power at revs, and a check engine light with CKP-related codes. If the tach drops to zero while cranking, that’s a strong hint.

Should it be replaced preventatively with the timing belt?

It’s not mandatory, but many techs suggest inspecting or replacing it when the belt and front covers are off, especially past 150,000–200,000 km. If there’s any doubt about the sensor or its wiring, doing it with the belt saves double labour.