391802B000 Hyundai / KIA SENSOR-CRANKSHAFT POSITION, Price: 46.91$, Weight: 0.09kg

Crankshaft Position Sensor for Hyundai/Kia – OEM-grade precision ⚙️

Restore crisp starts and smooth power with this CKP unit. Your engine relies on an exact crank signal to time spark and fuel. When the signal is clean, the ECU syncs ignition and injection perfectly, giving you quick starts, steady idle, and full efficiency .

Why you need it

The crank signal is the master clock for engine management. It tells the ECU where each piston is, so coils fire and injectors pulse at the right millisecond. Without it, the engine guesswork turns into misfires, stalls, or a no-start.

How it works

Mounted near the crank pulley or flywheel, the sensor reads a toothed reluctor wheel. As teeth pass the tip, it creates a clean pulse train (Hall/VR type). The ECU converts these pulses into RPM and position, then aligns spark and fuel with cam data for precise timing.

What happens if it fails

Typical signs: long crank, no-start, sudden stall, uneven idle, poor acceleration, limp mode, and Check Engine light (often P0335–P0339). If the signal drops out, the ECU cuts spark/injection to protect the engine.

Tech tips

Install on a clean seat, check the air gap, route the loom away from heat, and clear fault codes after fitment. Designed with heat-resistant potting, OE connector fit, and fast rise-time signal for stable RPM at hot idle and high load.

Compatibility

• Elantra
• Avante
• Elantra GT
• i30
• i30 CW
• i40
• i45
• Tucson
• ix35
• ix20
• Kona
• Venue
• Accent
• Verna
• Sonata
• Sonata YF
• Sonata YF Hybrid
• Veloster
• HB20
• Creta
• Solaris