R Ray 2003 Corolla New Member Nov 1, 2015 #1 Nov 1, 2015 #1 i have a 2003 Corolla that has been diagnosed with possible bad ecm. How hard is it to replace? How do I know if it can be fixed by flashing it?
i have a 2003 Corolla that has been diagnosed with possible bad ecm. How hard is it to replace? How do I know if it can be fixed by flashing it?
