|
Its possible the vvt turning off is the ecu going into limp mode.
Its possible tge ecu is not getting a signal it exoects from a sensor, possibly cam sensor or even maf, or another sensor that would cause limp mode.
Strange its not setting any cel codes.
Id try loading stock tune just with P0420 disabled for header
You need to go through a process of elimination
Check any connections that may have been disturbed
Look for strange sensor inputs like weird afr or cam positions , or map sensor.
Check knock if iam gets below certian value it could trigger limp mode
Check DI computer box is mounted via all bolts
If you have spare ecu try replacing that
If you have access to techstream use that for looking at cel codes, it reads storred or transient codes, not just current codes like a lit of code scanbers
Remove as many mods as you can easily and revert to stock tune with no racerom features or changes
|