Chef's E39 530d

[spawn616]

the car will hold errors for 3 ish days with the bat disconnected

ask me how i know haha,

the terminals thing scares me,but makes sense now after having no bmw for a week just so the car electrics could die properly

 

[Ratslaaf]

Or we can meet up and check the issue in 5 minutes.

 

[spawn616]

Or we can meet up and check the issue in 5 minutes.

this seems like the much easier option in my professional waiting opinion :biglol:

 

[Ratslaaf]

Hehe, he's waiting for ME to drive all the way to HIM! The loafer :roflol:

 

[Ralf*]

:fencelook:

 

[ChefDJ]

Hehe, he's waiting for ME to drive all the way to HIM! The loafer :roflol:

Actually waiting for a break

 

[ChefDJ]

Thank you Gert for the diagnostics once more, at dyno day this last Saturday :ty:

I seem to have a fuel starvation issue. Car is at the workshop today for a looksie. AutoData tells me that a common fault on these diesels is the fuel pressure sensor on the rail which may need cleaning due to corrosion build-up, or it might just be a little loose. Will update soon.

 

[Sabretooth tiger]

hope you get this beauty sorted soon

 

[ChefDJ]

Stripped out the fuel pressure sensor after removing the intake manifold. The thing looks brand new. Putting it back for now, and making sure plug is fitted properly.

Also stripped out the regulator by the high pressure pump, and there seemed to have been a problem there which might have been the cause of my issues. That was rectified (some sort of minuscule actuator pin what what thing). It wasn't opening, but now it is.

Was busy putting the manifold back to finish up, and then I snapped a bolt :skit:

Now I need to muster up the energy to go and strip the damn thing off all over again.

 

[Ratslaaf]

Geesh, it's like pulling teeth getting your car sorted hey. Let us know what you find

 

[ChefDJ]

Car still not performing properly and taking long to start now.

Going to get my old regulator back and see if it helps.

 

[Spannie]

What is your pre-supply fuel pressure bud?

 

[ChefDJ]

What is your pre-supply fuel pressure bud?

Gert's PC said around 3.2 bar, but a physical test shows around 5.1 bar.

 

[ChefDJ]

So I'm actually not too sure. The lpfp makes a noise sometimes when ignition is on, but supply to the filter is perfectly fine.

I'm lead to believe the vehicle will not start if the pre-supply pressure is less than 3.0 bar?

Wish I knew more about this stuff.

 

[zaleonardz]

Did you check Cylinder 3 for pigeons ?

 

[Nikhil]

Did you check Cylinder 3 for pigeons ?

Pigeons in the Foef is plausible :fencelook:

 

[ChefDJ]

Stop talking pigeons and start talking more sense...

 

[Spannie]

In my mind, the car will take long to start if there is air in the system, or if the pre-supply pressure is low. If I remember correctly the spec for the pre-supply is around 7Bar.

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I remember my rail pressure was around the 300-340Bar mark when idling.

 

[ChefDJ]

In my mind, the car will take long to start if there is air in the system, or if the pre-supply pressure is low. If I remember correctly the spec for the pre-supply is around 7Bar.

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I remember my rail pressure was around the 300-340Bar mark when idling.

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I think I need to bleed the fuel system to make sure no air is present.

 

[ChefDJ]

Why can't diagnostics just tell you "listen poephol, there's a fault with this part. Replace it and you're good to go"...?