Where exactly is the test port/schrader valve on the fuel rail located? Or is it elsewhere for the speed3s? I've been looking and I can't seem to find it. Thanks! : r/mazdaspeed3
Mazdaspeed3 relief valve fail on my HPFP - YouTube
L3M8-13-280 - Fuel Pressure Regulator - 2006-2020 Mazda | Werner Mazda Parts
2009-2013 Mazda 3 2.3L L4 Hitachi Direct Injection High Pressure Fuel Pump - Air Delivery Pumps