Oledirtypearl86
Full Access Member
Ok so my excursion passed an air test and I talked to a buddy he said check the ficm do cranking I get between 45 an 48 volts but the injector cycle at first key is eratic any who I had a new/rebuilt ficm I can try but it says it needs re flashed what's dothey flash on the ficm?and can I run it unflashe? The reason I ask is I herd they actually run better is this fact or fiction