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Model specific boards => Golf mk4 => Topic started by: Ant1981 on 04 October 2011, 17:21

Title: N75 Valve
Post by: Ant1981 on 04 October 2011, 17:21

If there were problems with the N75, what would the symptoms be?

Title: Re: N75 Valve
Post by: richw911 on 04 October 2011, 18:23

Lack of boost  :smiley:

Title: Re: N75 Valve
Post by: Toby on 04 October 2011, 18:30

Quote from: richw911 on 04 October 2011, 18:23

Lack of boost  :smiley:

+1

Title: Re: N75 Valve
Post by: Ant1981 on 04 October 2011, 18:36

mmmmm, would boost be on and off then on again? Cos that's kinda what I'm getting.

Title: Re: N75 Valve
Post by: Toby on 04 October 2011, 18:36

have you had it mappeD?

mine was faulty! was boosing ( mapped) then going back to standerd, then outa no where it would change back!

Title: Re: N75 Valve
Post by: richw911 on 04 October 2011, 18:41

Quote from: Ant1981 on 04 October 2011, 18:36

mmmmm, would boost be on and off then on again? Cos that's kinda what I'm getting.

Could do yes but so could a boost leak.

Any fault codes?

Title: Re: N75 Valve
Post by: Ant1981 on 04 October 2011, 18:49

It's not mapped.

Occasionally have had the code that says 'boost leak between turbo and throttle body, check DV'. It's got a forge 007p which was installed last year. The car has always been a bit of a lame dog. Sometimes it picks up well, but you can then feel very quickly the power drop off and it goes limp.

Title: Re: N75 Valve
Post by: daz veedub on 04 October 2011, 18:51

my plug that goes in to n75 had broken wire and completely lost any power wouldnt go past 0.5 bar

Title: Re: N75 Valve
Post by: Toby on 04 October 2011, 18:52

does sound like the n75 tbh,

not sure how much a new one is? there

£30 ish on the bay///

Title: Re: N75 Valve
Post by: richw911 on 04 October 2011, 19:02

Quote from: Ant1981 on 04 October 2011, 18:49

It's not mapped.

Occasionally have had the code that says 'boost leak between turbo and throttle body, check DV'. It's got a forge 007p which was installed last year. The car has always been a bit of a lame dog. Sometimes it picks up well, but you can then feel very quickly the power drop off and it goes limp.

Get a smoke test imo  :smiley:

Title: Re: N75 Valve
Post by: Ant1981 on 04 October 2011, 19:11

Yep, time to get it checked out. As the insurance costs are mad, looks like I won't be getting a Mk5 just yet.

Title: Re: N75 Valve
Post by: jockgti on 04 October 2011, 19:29

people are always saying about getting a smoke test,but where can you get this done? just at a normal garage or?

Title: Re: N75 Valve
Post by: Big Tone on 05 October 2011, 00:23

Quote from: Toby on 04 October 2011, 18:52

does sound like the n75 tbh,

not sure how much a new one is? there

£30 ish on the bay///

Maybe a little more, I have one if you need one, been on the car about a month.

Title: Re: N75 Valve
Post by: Ant1981 on 09 October 2011, 11:02

Definatley a boost leak as I've had again

17705 and 17545.