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View Full Version : Low fuel pressure possible hpfp failure



Jaymehaze
04-04-2017, 06:12 PM
2011 s5 4.2 I keep getting p0087 car hesitates anything more than 50% throttle , I see on vcds fuel pressure dropping during more than 50%,I got a p2293 once before ...


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Jaymehaze
04-04-2017, 06:13 PM
https://uploads.tapatalk-cdn.com/20170405/defe5fbdb4ceee267cf05c054e78a180.jpg


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Jaymehaze
04-04-2017, 07:52 PM
36838 you can see on the top throttle almost full 100% low fuel pressure is 6.56 bar Spec rail pressure is 101 bar but actual is only about 20 bar


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Jaymehaze
04-20-2017, 06:43 AM
https://uploads.tapatalk-cdn.com/20170420/751e1fc36431c125f4c3088e3b2c5af9.jpghttps://uploads.tapatalk-cdn.com/20170420/f4a8e9d22dc431e87e6e062a51bf46ac.jpg turns out there was some kind of plastic / carbon crumbs inside the hpfps in between the prv ... cleaned it all out reinstalled ran great


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Slavins5
09-06-2017, 04:02 PM
Funny! My mechanic said my hpfp had crumbs like black plastic in it too. He cleaned it and mine still isn't running right. Same exact symptoms as you!