Keep ignition timing and fuel delivery precisely synchronized with the Standard Ignition Engine Crankshaft Position Sensor PC389. It installs as a direct-fit replacement for the 1998-2002 Mazda 626, monitoring the crankshaft's position and rotational speed and reporting that signal to the engine control module so it can schedule spark and injection accurately.
- Core job: tracks crankshaft position and speed, giving the PCM the reference it needs to time ignition and fuel injection.
- Engine-management input: a clean, consistent signal helps the engine start, idle, and run as designed.
- Direct-fit application: matched to the listed Mazda 626 application for a straightforward replacement of a worn or failed original sensor.
Signs the crankshaft position sensor may need replacing include hard starting, an intermittent no-start, unexpected stalling, or a stored crankshaft-signal trouble code. Because these symptoms can also come from wiring, connectors, or other components, diagnose the cause first; if a faulty crankshaft position sensor is confirmed, this PC389 replaces it.
Interchange: Manufacturer part number PC389.
Frequently Asked Questions
What does the PC389 crankshaft position sensor do?
It monitors the crankshaft's position and rotational speed and sends that signal to the engine control module, which uses it to time ignition spark and fuel injection.
What vehicle does the PC389 fit?
It is cataloged as a direct-fit replacement for the 1998-2002 Mazda 626. See the Buyer's Guide tab for the full application details.
What are signs this sensor may need replacing?
Possible signs include hard starting, an intermittent no-start, stalling, or a stored crankshaft-signal trouble code. These can have other causes, so diagnose before replacing.
Should I diagnose before replacing the sensor?
Yes. Similar symptoms can come from wiring, connectors, or other components. Confirm the crankshaft position sensor is the cause first; if it is, the PC389 replaces it.
Where is the crankshaft position sensor located?
Location varies by engine and is generally near the crankshaft. Consult your vehicle service information for the exact location and correct replacement procedure.
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