Hey guys, having some trouble with my high side fuel pressure and was hoping for some help.
The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP. When running 98RON through the motor at 17 psi, my rail pressure is above 1700, however after mixing in E30/E40 the rail pressure now tanks hard on 19psi. I have replaced the HPFP with a used unit (120k kms) and replaced all 4 O2 sensors, both with no effect. Really unsure what could be causing this sharp rail pressure drop. My BRO table is full stock, and the fuel scalar was what was needed to keep my STFTs close to zero. Any suggestions/advice would be appreciated, thanks!
Here is a log of 17 PSI on 98 RON and a log of 19 PSI on E40, both taken before I replaced the O2 and HPFP.
https://datazap.me/u/asian47/17psi-test?log=0&data=3-20-21
https://datazap.me/u/asian47/e40-test?log=0&data=3-20-21
I have also attached my BINs for each of these logs.
The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP. When running 98RON through the motor at 17 psi, my rail pressure is above 1700, however after mixing in E30/E40 the rail pressure now tanks hard on 19psi. I have replaced the HPFP with a used unit (120k kms) and replaced all 4 O2 sensors, both with no effect. Really unsure what could be causing this sharp rail pressure drop. My BRO table is full stock, and the fuel scalar was what was needed to keep my STFTs close to zero. Any suggestions/advice would be appreciated, thanks!
Here is a log of 17 PSI on 98 RON and a log of 19 PSI on E40, both taken before I replaced the O2 and HPFP.
https://datazap.me/u/asian47/17psi-test?log=0&data=3-20-21
https://datazap.me/u/asian47/e40-test?log=0&data=3-20-21
I have also attached my BINs for each of these logs.