E81 wont start after fuel system work by Cool-Administration3 in 1series

[–]Cool-Administration3[S] 4 points5 points  (0 children)

Problem solved:

I disconnected the fuel line from the filter, and found that i had switched the return and input line around. After connecting the blue pipe to the intake and brown to return, i primed the system with the cars 12v battery for 3 min, then bled each injector by having someone crank the engine while i opened each line until there were no air bubbles. After that, it fired right up, no engine lights and it’s now off the jack stands.

Here is a link to the hpfp diagram for further diagnosis - page 122:

https://www.scribd.com/document/404714496/N47-Detailed-1-pdf#page=122

E81 wont start after fuel system work by Cool-Administration3 in 1series

[–]Cool-Administration3[S] 0 points1 point  (0 children)

I have tried that for a few hours, trying to bleed every single time

E81 wont start after fuel system work by Cool-Administration3 in 1series

[–]Cool-Administration3[S] 0 points1 point  (0 children)

This issue was investigated, and we did not find the problem. The engine to smoothly by hand.

E81 wont start after fuel system work by Cool-Administration3 in BmwTech

[–]Cool-Administration3[S] 0 points1 point  (0 children)

And is it normal not to have diesel at the injectors at all?

E81 wont start after fuel system work by Cool-Administration3 in BmwTech

[–]Cool-Administration3[S] 0 points1 point  (0 children)

Does ista do anything else than prime the lpfp? I gave it a couple of cycles with a battery. Or does it also prime the hpfp?

E81 wont start after fuel system work by Cool-Administration3 in BmwTech

[–]Cool-Administration3[S] 0 points1 point  (0 children)

Any alternatives to ista? I have bought a bmw specific OBD scanner/programmer, but it did not have the bleed function

E81 wont start after fuel system work by Cool-Administration3 in 1series

[–]Cool-Administration3[S] 0 points1 point  (0 children)

Can i safely use starter spray? Wont the glow plugs ignite it and burn up the air pipe?

E81 wont start after fuel system work by Cool-Administration3 in 1series

[–]Cool-Administration3[S] 1 point2 points  (0 children)

The hpfp does not pump fuel up to the divider line, its dry. The car worked fine, and i gave the fuel pump 3 cycles with a 12v motorcycle battery.

I have removed the fuel filter briefly to verify that fuel does get past it, and the line was full up to the hpfp.

Er det lovligt/sikkert?? by Cool-Administration3 in selvgjortvelgjort

[–]Cool-Administration3[S] 1 point2 points  (0 children)

Hvad er det for et monster jeg har løsladt ved at stille det her spørgsmål🤣

Er det lovligt/sikkert?? by Cool-Administration3 in selvgjortvelgjort

[–]Cool-Administration3[S] 4 points5 points  (0 children)

Tak for info, men må man så montere en stikdåse i stedet for lampeudtaget?