hpfp

Hi guys, Please have a look at the below logs. Does this look like HPFP failure? Basically what happens is, if I pull the car in WOT, I get a 29DC error code - injector shut off. It will then miss horribly, until I clear the codes. **Logs were taken with a leaky injector #1, which has since...

Hello fellow BMW enthusiasts! I am running into an issue with my F32 randomly going into a limp mode and shutting down the engine shortly after. In the majority of cases, I am able to start the engine and drive after clearing the error memory. These are all the errors from different...

Brand New In Box; complete kit, never used or installed; most items still in original packaging. VTT modified fuel rail included so no hassling with and waiting for core return ($200). Please contact me if you have any questions. For most AT/DCT N54 powered cars, please confirm fitment to your...

Greetings! I have an N54 that we don't really know the history of. Yesterday, we fired it up for the first time in our build and it seems the HPFP is completely dead. And by dead I mean the rail pressure was no higher than the low side pressure, at idle. From what I've read online, people with...

Alright guys, I’ve got a problem that i am literally lost on. The car keep throwing a 2FBC (fuel pump control valve signal). The code will show up intermittently, sometimes i can clear it for a while and sometimes it pops up immediately after. I’m running the vtto double shotgun kit (i don’t...

Decided to take a crack at coming up with possible fixes of the failures for the N54/Early N55 HPFP's and possible upgrades and we all know they are needed for these cars. This will be a project I work on in the side, but through the tear down process is shows a lot and answers a few questions...

Hey Guys (and gals? ) So I was in contact with Marcus @Sharp and we had some great conversations about using my car as the test mule for their new offering of the N54 Port Injection Manifold. Marcus was kind enough to send me a sample of the manifold as is. So we can expect this for now to be...

Hello people of SS. I just recently sold my N54 335i and was looking into the N55's due to so many issues that the N54's had. I N54's are known for wastegate rattle, vanos solenoids, cam ledge issues, HPFP, etc, etc...but I'm wondering how much more reliable and/or improved is the N55 engine...