A Step-by-Step Guide to Replacing Your Chevy GM Duramax Diesel FICM
A Step-by-Step Guide to Replacing Your Chevy GM Duramax Diesel FICM The Fuel Injection Control Module (FICM) is a critical component of your Chevy GM Duramax Diesel engine, responsible for regulating fuel injection and engine performance. When your FICM fails, it can cause a range of problems, from reduced engine performance to complete engine failure. In this guide, we'll walk you through the process of uninstalling and installing a new FICM for your Chevy GM Duramax Diesel engine. Common Fault Codes That May Indicate a Faulty FICM: Before we dive into the installation process, let's take a look at some common fault codes that may indicate a faulty FICM: P0201: Fuel Injector Circuit Malfunction P0202: Fuel Injector Circuit Malfunction (Multiple) P0251: Fuel Injection Pump Circuit Malfunction P0261: Fuel Injector Circuit Low P0262: Fuel Injector Circuit High P0335: Crankshaft Position Sensor Circuit Malfunction Uninstalling Your Old FICM: Before you can install your new FICM,...