HOP Crankshaft Position Sensor 078905381A 078905381 Fits Audi A4/A6/A8 2.8L

HOP crankshaft position sensor 078905381A/078905381 designed for Audi A4/A6/A8 2.8L (100 series); uses high-density engineering plastic housing and high-temperature copper core coil; tested to OEM standards for tensile strength and cross-section shrinkage; can withstand high-temperature vibration; accurately monitors crank position signal to ensure ignition timing and injection timing stability, preventing idle shake or starting difficulty. Installation requires removing intake manifold or splash shield; difficulty: medium.