yeah but how can i pay attention to the pfs keypad, when it never was really acurate as it should be. I never paid attention on the boost, but like on the vacuum it says i'm at -20 or more when i'm actually at -16 or something similar.

Is there a way i can just take a signal from ecu and do something with it. I guess the easiest thing for me would be to try someone's Map sensor

 

Update: I went for a ride tonight, and I was looking at my PFS keypad. Every time I hit 8psi on the Boost Gauge, it shows 15.3 on the PFS Keypad.

So that basically means that i'm hitting a fuel cut and that for some reason ecu shows 15.3 and gauge shows 7 psi.

Amel

 

Amel, did you solve your problem yet?

 

Yes he did, new engine and PFC:

https://www.rx7club.com/3rd-gen-archives-73/10psi-boost-studdering-braking-up-306386/