The ICP (Injection Control Pressure) Sensor is responsible for controlling the IPR (Injector Pressure Regulator) Valve in the Ford 7.3 Powerstroke. A faulty ICP Sensor can cause all kinds of problems. Poor idle, stalling, surging, or not even allowing the engine to start at all. Get your 7.3 Powerstroke running right again with a Sinister Diesel Injection Control Pressure Sensor. They are manufactured to meet or exceed OEM standards for long lasting reliability and so you can get things fixed right the first time., Note:Located Under the Turbocharger, Features:Restores poor driveability that comes with a faulty ICP Sensor, Manufactured to Meet or Exceed OEM Standards for reliable operation and a perfect fit, Comes with 12 Month/Unlimited Mile WarrantyIncludes:(1) Sinister Diesel Injection Control Pressure Sensor,