dominictesta24

have a 98 gt and im having a problem with her bogging out real bad..im getting 29-30 psi at idle at the fuel rail,when I unplug vacuum to the regulator I get 39-40psi when I give her gas full throttle she will jump up to 39psi,i have changed the fuel pump,fuel filter,injectors and still bogging out she idle great but like I said when I give her gas she boggs out bad,also I disconnected the exhaust and still no difference checked the intake for leakes and everything is good there so what am I missing.brought it to a few shops an no one can figure it out,could it be a sensor and what sensor would cause this. also checked the computer and got only transmission codes,mass airflow sensor seems to be working to...please what else am I missing I have done everything I have no mustang guys in my area to help me..