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Author Topic: ENGINE INLET NON RETURN VALVE  (Read 2277 times)

Offline oliver07

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ENGINE INLET NON RETURN VALVE
« on: 17 May 2009, 18:25 »
hi where is the best place to get one of these for my vr6 golf and will a broken one affect the performance much thanks
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Offline Adam

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Re: ENGINE INLET NON RETURN VALVE
« Reply #1 on: 17 May 2009, 18:41 »
The non-return valve going to the break servo?
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Offline oliver07

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Re: ENGINE INLET NON RETURN VALVE
« Reply #2 on: 17 May 2009, 18:50 »
no mate its from the air box into the engine seen one on ebay item 200301191788
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Offline AudiA8Quattro

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Re: ENGINE INLET NON RETURN VALVE
« Reply #3 on: 17 May 2009, 18:57 »
Thats the engine breather, and yes in theory it could affect performance.
I'm not sure how much they are at a main dealer. You could also search ebay for anyone else that is breaking a vr6.
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Offline ace

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Re: ENGINE INLET NON RETURN VALVE
« Reply #4 on: 17 May 2009, 19:19 »
get the one of ebay, had to get one for my bro-in-law. vw charge for the whole inlet pipe think it was something stupid like £90
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Offline Khare

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Re: ENGINE INLET NON RETURN VALVE
« Reply #5 on: 17 May 2009, 19:24 »
how does it affect performance?
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Offline AudiA8Quattro

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Re: ENGINE INLET NON RETURN VALVE
« Reply #6 on: 17 May 2009, 19:40 »
Airflow readings are calculated by the ecu with the breather working.
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Offline Khare

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Re: ENGINE INLET NON RETURN VALVE
« Reply #7 on: 17 May 2009, 20:03 »
?
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Offline oliver07

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Re: ENGINE INLET NON RETURN VALVE
« Reply #8 on: 17 May 2009, 20:08 »
can any of you guys please tell me if cleaning the throttle body is a bolt off bolt on affair thanks
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Offline AudiA8Quattro

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Re: ENGINE INLET NON RETURN VALVE
« Reply #9 on: 17 May 2009, 20:16 »
Quote from: Khare on 17 May 2009, 20:03
?

The ecu relies on the airflow meter amongst other things to calculate the fuel/air mixture, the crankcase ventilation is further downstream, so if it is not functioning correctly then the ecu will not calculate it correctly, as the extra burnt gasses are taken into account.
This can cause problems, such as the throttle response feeling a bit flat.
I had a problem similar on my A8 a few months back. The main engine breather had collapsed, i couldn't believe the improvement when i replaced the hose.
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