So, while I was trying to correct my loss of fuel in this thread https://mazdaspeeds.org/index.php?threads/fuel-pressure-drops-then-stalls.5606/
I replaced a number of parts related to fuel. Prior to all this, I have had the P0301 and P0300 codes comes up for 3 years. I had accepted that this...
Resolved. See post #59
Updating details: Parts replaced:
HPFP
valve cover gaskets
In tank fuel pump assembly
Fuel pump resistor
Relief valve
All the blue resistors (ETV, Injectors, FP, Circuit)
On to the details...
Gen1, 2007, 224k miles
Turbo is 164k miles old, most everything else is...