Technical High pitch whine?

[OLZ]

Had it for ages but never bothered to ask..
I get a high pitch whine when I turn the ignition on. It sounds like its coming from the ECU/back of engine-bay it then sounds like someone loading a gun and the whine stops.

This is when I turn the key both one click (electrics) or two clicks (engine start), its just harder to hear over the ROAR of my 1.4

Any ideas?

 

[punto_matt]

Its normal. If you turn it to first click and leave it it stops after 10 seconds or so?

 

[OLZ]

Its normal. If you turn it to first click and leave it it stops after 10 seconds or so?

Yeah, don't remember it when I first bought the car though :/

 

[punto_matt]

Its just something priming.

 

[mehstg]

As Matt said. It's the fuel pump priming.

P

 

[colin79666]

The Skoda Fabia does it when you open the drivers door. Can be quite disconcerting until you realise its the fuel pump.

 

[lewey]

Had it for ages but never bothered to ask..
I get a high pitch whine when I turn the ignition on. It sounds like its coming from the ECU/back of engine-bay it then sounds like someone loading a gun and the whine stops.

This is when I turn the key both one click (electrics) or two clicks (engine start), its just harder to hear over the ROAR of my 1.4

Any ideas?

I know this is an old thread, but there is a better answer to this that might help someone else. This noise is the motorised throttle body calibrating, not fuel priming. It makes a high pitch noise and moves the butterfly around to check it knows where the limits are. It will make a "loaded gun" noise when the butterfly is pushed against the housing and a sort of ratchet inside is tripped, telling the ECU that that is the limit of the movement.