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Unique & Challenging No Start - No Inj Buzz
I know there are a million No Start threads - feels like I have read them all. But still no help for me.
I had a rebuilt motor installed after a rod went thru the block. Everything great for ~1000 miles of light use. Then one day - no start. After 3 attempts, I could finally hear injector buzz at key-on, then it fired. For a week or two - same thing - had to turn key on/off a couple of times to hear buzz, then it would fire. Now - no buzz, no start.
FICM is Swamps 58V, about 3 years old. All Injectors are new. I'm using ForScan w/generic reader. 160 rpm cranking, FICM SYNC OK, IPR 15% cranking, ICPDES 1025psi, ICP 1.63V
Only codes related to EGR delete & P1000. Checked all grounds & voltage at FICM X3 connector - all good. FICM Voltage read directly 58V IGN ON, drops to 55V cranking.
Is it possible for logic side of FICM to fail, w/o setting codes? ie. Voltage is good, but still no output to injectors? How to test for that? Any other ideas?