Hello everyone I have a little trooble whit this, is a 06 E350 6.0 the customer said after replace the turbo have a problem whit the miss fire then replace the injector and is a little better, I check and ones at the time I have a miss fire at cilinder # 7 but no all the time and sometimes the miss fire is at cylinder 1,3,5,7 I check all the wires and everything its ok I no si nothing wrong and be onest I dont know whats more to due. I found the clamps for the exhaust to the turbo lose thanks for the help

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I forget the customer said some body reflash the comp to

 

We'll need a little more info. Does it only happen when the engine is cold? Have you checked the voltage on the FICM? Fuel pressure readings? Fuel filter status?

 

A whole bank of injectors... hmmm.

Start with load testing batteries (to ensure FICM is working right) then test the FICM. You can find the test procedure at the top of the 6.0 page in the sticky section.

Could be an o-ring leaking on an injector and letting blow by into that rail, causing all injectors to throw codes, not terribly uncommon.