loosing power in gti ????

[shinygti]

Hey just wondering if anyone can shed some light on a problem i have ?
I have a mk5 gti with giac tune and vf inlet and a dumpipe and was pulling 22 psi and car was running good but now it wont even beat a standard gti and cant get more than 19 psi and it drops to bout 13 psi ???/

dont know what the problem is but it is lacking performance and not boosting up properly but have no check lights coming up ? I am thinking it might be the pcv valve but not to sure and would like to know if anyone else has had this problem or not ?

[32 MKV]

hey shane, did you end up plugging it in to see if it came up any codes?

[shinygti]

na not yet will do it in the morning

[Tim]

are you still running the standard diverter valve? They are prone to failure even on stock cars.

[shinygti]

I have a forge dv so dont think that it will be the problem unless it has died .....

[Big Yellow]

If you're losing boost it could be a leak somewhere.

Also check your intake pipe is connected properly.

Best idea is take it back to your giac dealer or mechanic for diagnosis

[Tim]

depending on how old your forge dv is it could possibly be the cause of the problem. Those dvs require periodic maintenance otherwise they can stick.

Youre only a couple of PSI down so its strange if you feel your car is slower than stock.. Might be something else at play as Big Yellow says. Might pay to get someone to check it out that knows how to properly diagnose the issue.

[shinygti]

thanx guys i will have a look. Um what sort of maintainace do the forgge dv need ?

[NabzGTI]

I had the same issue when I went with the forge dv.. I thought it was faulty, so I returned it, got a brand new one along with a Revision "D" valve. I used the revision "D" and everything back to normal.

Only problem now is I have a brand new Forge DV that is being neglected hehe

[weiero]

but now it wont even beat a standard gti dont ?

Pity my blue fin wasn't loaded....

[shinygti]

Pity my blue fin wasn't loaded....

i know you would have beaten me so bad lol. Still not sure what the go is and i have done a scan and no faults came up so going to try take it into the place that did the tune for them to have a look at it on friday

[weiero]

hope you get it fixed..... my car is still at australs.... driving a new wrx from work gotta run it in... hmmm does 6000rpm launches class it as running it in??

[shinygti]

If its not yours then hell yes that is running it in lol

[chrisgti]

i know this isnt your problem but when was the last time you cleaned your evoms? I notice mine seems a lil bit peppier with a clean and fresh oil

[shinygti]

i know this isnt your problem but when was the last time you cleaned your evoms? I notice mine seems a lil bit peppier with a clean and fresh oil

Hmm has been a while but will give it a go and see if it helps. thanx.
Igave peter a call but he was busy and ment to ring me back but hasnt yet so will call him again and see what he can suggest

hows your car going ?