passdattdi
Active Member
- Joined
- Apr 9, 2024
- Messages
- 77
- Reaction score
- 2
- Location
- California, USA
- VCDS Serial number
- H11-NRRT
Thanks for the breakdown and advice. Definitely helps.
Did swaping out the head on hpfp solve low fuel pressure?
I actually did replace the whole pump in case of worn piston or other internal parts. Initially I did shop the wrong pump based on car year, make, model. Car didnt wven start. As you stated, much more complex than that. So i decided to get exact match; everything. Slapped it on, started right away. Unfortunately, did not solve issue though. At any rate, before looking into pump again, I'll start again with other things
If one follows the manual , says don't replace pump if no metal. I don't have metal so will approach differently. At the moment, we will be looking into fuel injectors. Bought a kit to test return rate. Seems the number 4 is returning about q0 ml more than the rest. Will look into it further.
I agree, only so many things that can affect that pressure. Just the fact that I can name all those components off top of my head tells you how much I been researching and working on this, lol.
Did swaping out the head on hpfp solve low fuel pressure?
I actually did replace the whole pump in case of worn piston or other internal parts. Initially I did shop the wrong pump based on car year, make, model. Car didnt wven start. As you stated, much more complex than that. So i decided to get exact match; everything. Slapped it on, started right away. Unfortunately, did not solve issue though. At any rate, before looking into pump again, I'll start again with other things
If one follows the manual , says don't replace pump if no metal. I don't have metal so will approach differently. At the moment, we will be looking into fuel injectors. Bought a kit to test return rate. Seems the number 4 is returning about q0 ml more than the rest. Will look into it further.
I agree, only so many things that can affect that pressure. Just the fact that I can name all those components off top of my head tells you how much I been researching and working on this, lol.