05 to 09 coyote generation 2 swap! Guide and help tips

[2008_ScarlettGT]

I’ve seen a VIN flash mentioned in this thread. What is the purpose of this and how is it accomplished? I am doing a 3-2-1 Frankenstein coyote swap and running a PATS deleted gen 1 ECU.

 

[mattjames]

I’ve seen a VIN flash mentioned in this thread. What is the purpose of this and how is it accomplished? I am doing a 3-2-1 Frankenstein coyote swap and running a PATS deleted gen 1 ECU.

No point if you have PATS deleted

 

[CoyoteRed]

Been awhile since I checked this. So if I turn down the fuel pressure at the rail would this solve my problem? Could it be that easy? Thought I needed to remain return style so the emissions sensors won’t throw codes. What needs changed to run return-less?

 

[mattjames]

Been awhile since I checked this. So if I turn down the fuel pressure at the rail would this solve my problem? Could it be that easy? Thought I needed to remain return style so the emissions sensors won’t throw codes. What needs changed to run return-less?

The emissions shouldn't care if it's return or returnless.