Keep the ignition and fuel systems working from the right crank reference with the Standard Ignition Engine Crankshaft Position Sensor PC438. It installs as a direct-fit replacement for the 1994-1995 BMW M3, restoring the signal the engine control module relies on to track crankshaft position and speed.
- Core job: reports crankshaft position and rotational speed to the engine control module, which uses it to time ignition and fuel delivery.
- Direct-fit replacement: made to replace the original crankshaft position sensor on the listed application.
- Signs it may need replacing: a no-start or hard-start condition, stalling, or a misfire can point to a failing crankshaft position sensor. Diagnose the cause first — if the sensor is at fault, this replaces it.
Because the same symptoms can stem from wiring, the tone ring/reluctor, or related components, confirm the crankshaft position sensor is the cause before replacing it.
Interchange: 12141401889 · CSS886 · SU7389 · CSS9108
Manufacturer part number PC438
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this crankshaft position sensor do?
It reports the crankshaft's position and rotational speed to the engine control module, which uses that signal to time ignition and fuel delivery.
What vehicle does the PC438 fit?
It is a direct-fit replacement for the 1994-1995 BMW M3. Check the Buyer's Guide tab to confirm it matches your vehicle.
What are signs this sensor may be failing?
A no-start or hard-start condition, stalling, or a misfire can indicate a failing crankshaft position sensor. Diagnose the cause before replacing.
Which numbers does this part interchange with?
It cross-references 12141401889, CSS886, SU7389, and CSS9108. Its own manufacturer part number is PC438.
Will replacing this sensor fix my no-start?
If a faulty crankshaft position sensor is the cause, this replaces it. The same symptom can come from wiring or the reluctor, so diagnose first.
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