What is an IDM on a Powerstroke?
What is an IDM on a Powerstroke? The IDM (Injector Driver Module) is basically a dumb box that fires the injectors in response to a signal from the PCM telling it which injector to fire, when to fire it, and for how long. Can a HVHF IDM cause a check engine light? *Please note that this product may cause a P1298 “IDM fault” code, which DOES NOT cause a check engine light, SES light, nor cause any driveability issues. This code is 100% normal for a non-stock, performance HVHF IDM. This product can be used with or without performance PCM...