HOP Yiqi Universal Fit Santa Fe/Terracan 3.5L Crankshaft Position Sensor 39310-39800

Santa Fe 3.5L and Trax 3.5L crank position sensor with HOP 39310-39800 is universally compatible. Replaces Hyundai original 39310-39800; core function is to monitor crankshaft speed and position and feed signals to the ECU to control ignition and injection timings. After installation, it resolves starting difficulties, acceleration jitter, or engine stumble, especially cold-start stalling. If idle is unstable, power drops, or the engine fault light comes on, sensor aging is likely; replace promptly to ensure stable engine operation.