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Author Topic: Fuel pump prime when drivers' door opened?  (Read 7861 times)

Offline john87

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Fuel pump prime when drivers' door opened?
« on: January 27, 2012, 10:04:57 am »
I can remember reading somewhere that, in the mk5, there is a command which tells the fuel system to prime when the drivers door is opened after the doors are unlocked...

I can't say I've ever noticed anything happening on my golf, however I was driving a 2010 seat ibiza yesterday and noticed this happening upon opening of the drivers' door. I know its a different type of fuel system on these engines (standard 1.4) than the Golf's FSI unit, but wondering if this could be contributing towards the cold start problems that myself and some other GTI owners have?

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Offline RagingKileak

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Re: Fuel pump prime when drivers' door opened?
« Reply #1 on: January 27, 2012, 03:21:17 pm »
I hear it prime when I open the door on my 2007 ED30.

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Offline Jaywoo-GTI

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Re: Fuel pump prime when drivers' door opened?
« Reply #2 on: January 27, 2012, 03:37:31 pm »
And me on my 2006 GTI

Offline Tfsi_Mike

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Re: Fuel pump prime when drivers' door opened?
« Reply #3 on: January 27, 2012, 04:04:28 pm »
+2 on my Cupra

Offline gazbutS3

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Re: Fuel pump prime when drivers' door opened?
« Reply #4 on: January 27, 2012, 04:07:38 pm »
and me  :laugh:

Offline bacillus

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Offline john87

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Re: Fuel pump prime when drivers' door opened?
« Reply #6 on: January 27, 2012, 07:49:12 pm »
How obvious is this sound? I could hear it quite clearly on the Ibiza, a sound like water passing through a kinked section of garden hose, for about a second or two. Nothing in the GTI though  :scared:
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Offline john_o

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Re: Fuel pump prime when drivers' door opened?
« Reply #7 on: January 27, 2012, 08:48:26 pm »
on mine its very obvious , so x3  :happy2:
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Offline Richn83

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Re: Fuel pump prime when drivers' door opened?
« Reply #8 on: January 28, 2012, 09:13:00 am »
i never hear mine, but dont have cold start issues. 05 gti.

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Offline rich83

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Re: Fuel pump prime when drivers' door opened?
« Reply #9 on: January 28, 2012, 09:17:19 am »
Can't say I've noticed it on mine.

Offline Gene Hunt

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Re: Fuel pump prime when drivers' door opened?
« Reply #11 on: January 28, 2012, 09:48:50 pm »
I used to hear this every time on my old mk4 1.8T GTI, but can't say I've ever noticed it on my mk5 tbh.  :confused:

Offline edd666999

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Re: Fuel pump prime when drivers' door opened?
« Reply #12 on: January 28, 2012, 09:55:57 pm »
i hear mine too 07gti

Offline stealthwolf

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Re: Fuel pump prime when drivers' door opened?
« Reply #13 on: January 28, 2012, 11:18:54 pm »
I notice mine and have done ever since I bought it (57-plate ED30).

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Offline john87

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Re: Fuel pump prime when drivers' door opened?
« Reply #14 on: February 01, 2012, 10:14:26 pm »
I have a hunch that I'm on to something here...

I've had cold start problems ever since I've had my GTI, where the engine stutters then finally fires up...sounds like a bubble of air going through the fuel lines.

I'd be curious to find out if all those who can hear the in-tank pump priming have ever experienced this delayed cold start issue?
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