I had an automotive locksmith come out who was capable of reprogramming keys, ECUs, body modules, ect. We did full clears of all codes on both...
I have a 2010 speed3 that won't start, been sitting for a while in my garage. I bought the car knowing it had an issue starting, got it started...
Correct , I'm talking about the HPFP housing itself, not internals. Even the mazda dealer told me they dont see many of those pumps sold, but...
What RPM range is this occurring in? For example, I had a similar issue, and it was <3000rpm. This would be the case if you were cruising on the...
Unfortunately since it took me ~3+ months to get this resolved I am well past the refund window for it. I only paid like $100 for it. Lesson...
Update: Problem solved Before I tried this, I also started see fuel rail pressure drop to ~1400psi during WOT, this prompted me to start swapping...
I actually picked up two separate fuel rail pressure sensors on top of the one in the car , and the issue persists when using all 3 sensors. I'm...
I did. I tried two different HPFP housings, each with CS internals and Autotech internals (so 4 different setups tested). Autotech internals were...
So this adventure has continued, my car still has the hesitation/stuttering and with P0089. I may make a new post, but my car still stutters and I...
I only disconnected some PCV lines, and my intake, so it should be pretty isolated to the HPFP housing (and even then, I replaced the fuel relief...
EDIT: Problem solved, both my HPFP housings were bad. New HPFP housing solved the problem. More detailed explanation in a response posted below....
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