It's the siphon jet that's failed *presumably - Fuels being pumped to the other side of the tank which is causing the issue so I need to keep it above a certain point or it conks out. I think the secondary pump is taking up the slack.


I used the normal dash test to watch levels on the tanks and it all fits with previous posts about the siphon pump.


Other then shoddy MPG of 23.7 I'm not noticing any other fueling issues. I did have a minor leak at the HPFP but I replaced that hose with a new one from BMW so thats all solved now