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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 09-17-2014, 05:49 PM
Cabover1000 Cabover1000 is online now
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Mein Auto: 1999 bmw 528i
Fuel pressure question

Hi. How long should fuel pressure stay in the fuel rail for? Thanks

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1999 528i sport premium, 18" e38 m-pars, tinted rear windows, blacked side markers, muffler removed with dc exhaust tip, Quantum QZA 3100D mono block, 2 12" Audiobahn aw121t, eclipse EA4000 4 channel amp, Rockford Fosgate door speakers.
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Old 09-17-2014, 06:04 PM
1hander 1hander is offline
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pretty much indefinately...im sure not forever .. but ata very very very minimum... overnight,, if not you have a leak in the fuel system or on or more injectors re leaking
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Old 09-17-2014, 06:18 PM
Cabover1000 Cabover1000 is online now
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Originally Posted by 1hander View Post
pretty much indefinately...im sure not forever .. but ata very very very minimum... overnight,, if not you have a leak in the fuel system or on or more injectors re leaking
Ok Thanks. I have a cylinder 5 "burn fail" according to inpa. But I cant seem to get it to go away. I have swaped coils and it didnt change anything. I will put a new plug in and see if that does it. I wonder if the injector is floodind the cylinder.

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1999 528i sport premium, 18" e38 m-pars, tinted rear windows, blacked side markers, muffler removed with dc exhaust tip, Quantum QZA 3100D mono block, 2 12" Audiobahn aw121t, eclipse EA4000 4 channel amp, Rockford Fosgate door speakers.
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Old 09-17-2014, 07:53 PM
edjack edjack is offline
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What does "burn fail" mean?
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Old 09-17-2014, 07:58 PM
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JDeGraff89 JDeGraff89 is offline
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Welcome back Cab!! My fuel rail used to drain in like 15 minutes.. Now I think my record was 14 days holding pressure...
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Old 09-18-2014, 03:26 AM
Cabover1000 Cabover1000 is online now
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Quote:
Originally Posted by edjack View Post
What does "burn fail" mean?
I think it means misfire.

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1999 528i sport premium, 18" e38 m-pars, tinted rear windows, blacked side markers, muffler removed with dc exhaust tip, Quantum QZA 3100D mono block, 2 12" Audiobahn aw121t, eclipse EA4000 4 channel amp, Rockford Fosgate door speakers.
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Old 09-18-2014, 03:26 AM
Cabover1000 Cabover1000 is online now
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Location: Belding,Michigan
 
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Mein Auto: 1999 bmw 528i
Quote:
Originally Posted by JDeGraff89 View Post
Welcome back Cab!! My fuel rail used to drain in like 15 minutes.. Now I think my record was 14 days holding pressure...
What did you have to do to fix it?

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