I already know the answer but I want to hear it.
Hooking up my BOV last week, I noticed a vacuum port I never plugged. Well, I plugged it of course.
Now my fuel MPG has gone to hell.. down to around 15-18mpg from 22-28.
My SAFC2 correction values (550s and 12psi boost) have always been -33 to around -28 for PERFECTTTTTTTT fuel/air ratio at any throttle at that boost.
Now, they are -30 to -10 depending on throttle (goes to -12 at even 50%).
That answers my fuel consumption issue. My guess is, since I tuned on the open vacuum port, plugging it caused the MAP to read differently, throwing my SAFC2 for a spin.. Correct?
Hooking up my BOV last week, I noticed a vacuum port I never plugged. Well, I plugged it of course.
Now my fuel MPG has gone to hell.. down to around 15-18mpg from 22-28.
My SAFC2 correction values (550s and 12psi boost) have always been -33 to around -28 for PERFECTTTTTTTT fuel/air ratio at any throttle at that boost.
Now, they are -30 to -10 depending on throttle (goes to -12 at even 50%).
That answers my fuel consumption issue. My guess is, since I tuned on the open vacuum port, plugging it caused the MAP to read differently, throwing my SAFC2 for a spin.. Correct?
