Mazdasloww3
Greenie Member
Normally I wouldn't go to Amazon for a critical part, but $80 vs $220 for a damn valve is hard to argue against, and especially being able to get it overnighted. The few reviews are good surprisingly, just wondering if anyone here has done it.
Edit: For anyone who stumbles on this in the future, it failed two months later. Get a legitimate OEM one. Packaging looked convincing too, as is usually the case with counterfeit parts. Very wishful thinking of me to hope it'd be good, don't risk your motor for convenience.
Edit 2: Wasn't PRV. After attempting to clean spill valve needle (which I found to be clean), ended up finding out small increments in spill valve tightness makes a decent difference in hpfp pressure. Guess mine had worked itself just a bit loose. I had to get mine a bit tighter than I would've imagined for proper pressure. Symptoms were intermittent fuel pressure drop under high load/WOT, how bad it dropped seemed related to the temperature of the HPFP.
Edit: For anyone who stumbles on this in the future, it failed two months later. Get a legitimate OEM one. Packaging looked convincing too, as is usually the case with counterfeit parts. Very wishful thinking of me to hope it'd be good, don't risk your motor for convenience.
Edit 2: Wasn't PRV. After attempting to clean spill valve needle (which I found to be clean), ended up finding out small increments in spill valve tightness makes a decent difference in hpfp pressure. Guess mine had worked itself just a bit loose. I had to get mine a bit tighter than I would've imagined for proper pressure. Symptoms were intermittent fuel pressure drop under high load/WOT, how bad it dropped seemed related to the temperature of the HPFP.
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