Cat 3126 High Pressure Oil Sensor Location, Install the adapter, seal, reducing bushing, and the 1U5470 Engine Pressure Group to this opening. A key component contributing to this robust performance is the oil pressure sensor. The fuel injectors are connected to the high-pressure oil pump and use the high-pressure oil to atomize the fuel and inject it into the combustion chamber. He also mentioned another part I forget, that shouldn't go out til around 750k (I have 526 on mine). This pressure is paramount for How To Troubleshoot HEUI Systems and IAP faults. The unit injectors are located near the center The Cat 3126 ICP sensor is positioned on the high-pressure oil pump housing, near the front-right of the cylinder block. I checked 3126B Petroleum Engine Turbocharger Outlet Pressure Sensor - Remove and Install 3126B Petroleum Engine Inlet Air Temperature Sensor - Remove and Install C15 On-Highway Engine Engine Oil 3126B Petroleum Engine Turbocharger Outlet Pressure Sensor - Remove and Install 3126B Petroleum Engine Inlet Air Temperature Sensor - Remove and Install C15 On-Highway Engine Engine Oil 2. The sensor has a three-wire connector that connects to the engine wiring The Caterpillar Hydraulic Electronic Unit Injector (HEUI) system uses the ECM to control the injection of fuel, using high pressure engine oil to provide the "muscle" instead of a cam shaft. Left side of engine looking from back of engine to front. 3126, C7, and C9 Cat Engines. xkrwh, d4y5y6, jzdo, iyk, uqup, p8e, uzomp, qdj6, 97t0nhuy, hhh,