Hitting fuel cut with safc //How w/good trims

[BOBS90TURBO]

I worked all day getting my fuel trims near perfect and afterwards I went to do some log runs and hit fuel right off, it was a cool damp night run and I hit cut at 4400 RPM and my INJPulse was 20.73ms and O2-r was 0.85v.
I have a gutted lower 1g mass that really leans the car out, so I have my Hi's set at 8 across the board, I did lean the safc 3% across and it fixed the fuel cut, but now my trims are off again, how can this be????????

If I turn up my fuel psi from 40 to 43 would that help any?

 

[burldude]

You have to turn down your boost or get a maft . I ran into this myself "hz airflow cut " I would think it is time to upgrade .

 

[Talonman]

or bigger injectors would have you reporting less airflow to the ecu pushing fuel cut back a while longer

 

[kyle h.]

bump the fuel pressure up and bump the boost down. retune, and turn the boost up from there.


and retune