thank you mituc for pitching in. with key on engine off the fuel rail pressure will build past 1000 psi and hold. however, when idling the fuel rail pressure is only 200. i checked the voltage being sent to the spill valve on the hpfp and it is only 8V. the manual says it should be around 10V. any i...

i think i have found the issue. while the car is idling, the hpfp spill valve voltage is 8V. i read in a MSF thread that it is supposed to be around 10V. can anyone confirm this or give more info on the spill valve voltage?? also, i unplugged my MAP sensor while the car was idling and there was no c...

I have checked the spill valve. as far as i can tell it looks fine, all the pieces are there. i cleaned it and reinstalled it. is there any way to clean the intank filter??

removed the fuel pressure relief valve (the brass thing) and it seems good (being that it is brand new), i cannot get any air to pass thru it either way. if i just turn the key to the on position the fuel pressure reading steadily climbs, i had it climb to the 500s the day before yesterday. i forgot...

hey, i have a 2007 mazda cx7 gt with the 2.3 DISI turbo MZR engine. at idle the car is running around 300 psi in the fuel rail. the maps are targeting for 430 psi in fuel rail at idle. i have replaced the fuel pressure regulator on the fuel rail, the high pressure fuel pump, and all injectors with s...

hey guys, i just ordered VT this morning for a 2007 cx 7 GT AWD. i have had other imports before but none with a turbo. i am familiar with how turbos work and how engines work. i have spent the last week learning all a could about how the 2.3 DISI turbo engine works. VT is the first of several upgra...