What is ICP sensor in a 7.3l diesel engine?

The ICP (Injection Control Pressure) sensor in a 7.3L diesel engine monitors the pressure of the oil that controls the fuel injectors' operation. It provides feedback to the engine control module (ECM) to ensure optimal fuel delivery and injector timing, which is crucial for efficient engine performance and emissions control. If the ICP sensor fails or malfunctions, it can lead to issues such as hard starting, poor fuel economy, or rough idle.