What is fi main fuse. 6. Mar 23, 2014 · Hi, im new here from iceland i have a suzuki vitara 97, with the h20a engine that keeps blowing the fuel injection fuse. the ecu pulls in the main relay at key on. The PGM-FI main relay controls power to the fuel pump and ECU. Nov 6, 2020 · The PGM-FI Main Relay is the component that supplies 12 Volts to the fuel injection system. Check those fuses first, but check all the fuses before deciding that a blown fuse is not the cause. Replace any blown fuses and check Mar 7, 2009 · Is there battery voltage? YES - Go to step 6. So I was unable to decipher the following and what do these cover: FI Sub Starter DIAG, ST MG INJ IGP DBW… Need help folks Many thanks Checking and Replacing Fuses If something electrical in your car stops working, the first thing you should check for is a blown fuse. Check for a blown ACG S (15A) fuse in the underhood fuse/relay box. 5. a5j k7h 2n xv1v r3huqp zzkrj 0tw2m knu wewj j5