P0386: Crankshaft Position (CKP) Sensor B Performance
Possible Causes
- Faulty ignition coil or spark plug
- Fuel delivery issues (clogged injector or low pressure)
- Wiring or connector issues in the ignition circuit
- Vacuum leaks or intake manifold issues
- Faulty engine control module (ECM)
Diagnosis and Repair
- Use a scanner to identify the misfiring cylinder
- Inspect spark plugs and ignition coils for wear or damage
- Check fuel injector operation and fuel pressure
- Inspect wiring and connectors for faults
- Replace faulty components (spark plugs, coils, or injectors)
- Clear codes and perform a test drive
Related Error Codes
See also: P0300, P0301, P0302, P0303, P0304
Keywords: relay diagram, p0386:, vehicle fuse box, automotive wiring, fuse panel layout, position, b, sensor, fuse replacement guide, car fuse types, performance, fuse and relay guide, (ckp), car electrical system, crankshaft, ECU error codes, fuse box diagram, electrical troubleshooting
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