N75 knackered - symptoms?

[auq]

I think my N75 is playing up as lately, im loosing boost sometimes, car feels like its almost dumping all the boost and there's no power atall, very intermittent, i have to pull off quite carefully to avoid this from stationary.

Ive searched here and maybee think its swaying towards N75 valve?, ill get a vag-com scan done asap, dont think its hitting limp mode either

any advice would be great

 

[auq]

****bump****

 

[LEE69]

Can you borrow another to try?

 

[auq]

cant get hold of one Lee!

 

[seatcupramad23]

cant get hold of one Lee!

just p'm you

 

[kaspa_dtz]

can you keep this thread updated mate if you manage to get hold of one, my syptoms are very similar and i havent touched the N75 yet....

 

[LEE69]

There is a test i found

http://www.seatcupra.net/forums/showpost.php?p=3528686&postcount=73

 

[auq]

can you keep this thread updated mate if you manage to get hold of one, my syptoms are very similar and i havent touched the N75 yet....

*Will do!

 

[auq]

There is a test i found

http://www.seatcupra.net/forums/showpost.php?p=3528686&postcount=73

Ok, cheers Lee, ill whip it off inabit and have a go!

 

[auq]

Thanks to (seatcupramad23) for this very handy information!


the ogignal auq engines had c valves but were prone to fail and seat made uprated valves later on after 2004 i' told called f valve then lat year seat again replaced the f valve with the newest e valve ,

the j valve is aggressive and cause higher initial spikes boost comes slightly earlier but tails off earlier also, if your car was mapped on a c, f , valve only replace it c, f or e valve it will cuase trouble if you use j valve without visiting tuners again

 

[seatcupramad23]

no worrys auq , this information was told me by stealth racing which i very reputable tuners

 

[auq]

Im getting a new problem tonight!, when i floor it, then change gear the revs arnt dropping fast enough, theyre holding high ?

 

[seatcupramad23]

clutch pedal switch no doubt , had same issue

 

[auq]

clutch pedal switch no doubt , had same issue

Can you tell me how easy is it to change the cutch switch? (do u have one too)! lol

 

[waynepixel]

I think my N75 is playing up as lately, im loosing boost sometimes, car feels like its almost dumping all the boost and there's no power atall, very intermittent, i have to pull off quite carefully to avoid this from stationary.

Ive searched here and maybee think its swaying towards N75 valve?, ill get a vag-com scan done asap, dont think its hitting limp mode either

any advice would be great

I had this problem last year and it turned out to be the N75 Valve, and get this, when I got a VAG Com scan it did not pick up the fault because it was intermittent so it was the last thing I changed. An indication it is the N75 is a fluttering noise from the Turbo on boast.

 

[leon_lee]

mines got similar symptoms, boost spiking way higher than normal intermitantly and then dumps all boost, this can be felt mostly when flooring from low revs in 2nd or 3rd gear, the boost builds and then goes way past normal, then you hear it dump with foot flat to the floor and then boosts again. I've checked GSF but they don't seem to list the N75 valve so i might have to give the stealers a call tomorrow for a price. I might order a clutch switch as well as i think mine might be knackered too but will try the N75 first.

 

[seatcupramad23]

germanautospares sell them for £45 e valve

 

[ibizacupra]

no worrys auq , this information was told me by stealth racing which i very reputable tuners

care to share?

 

[stig1]

I had this problem last year and it turned out to be the N75 Valve, and get this, when I got a VAG Com scan it did not pick up the fault because it was intermittent so it was the last thing I changed. An indication it is the N75 is a fluttering noise from the Turbo on boast.

when you say you had the boost fluttering do you mean like mine is its up and down between 1.2 and 1.6 bar it like bounces when you floor it and the boost builds up

 

[LEE69]

Thanks to (seatcupramad23) for this very handy information!


the ogignal auq engines had c valves but were prone to fail and seat made uprated valves later on after 2004 i' told called f valve then lat year seat again replaced the f valve with the newest e valve ,

the j valve is aggressive and cause higher initial spikes boost comes slightly earlier but tails off earlier also, if your car was mapped on a c, f , valve only replace it c, f or e valve it will cuase trouble if you use j valve without visiting tuners again

care to share?

Posted above Bill