I need some help folks. After swapping out the S4 turbo for the S5 unit, I started it up. Now when I rev it, it seems to take forever for the revs to drop back down. If anyone has had this problem or has any ideas as to what the problem might be, please let me know.

Thanks!

 

Forgot to mention that I also did the TID mod and the DIY blow-off valve as well.

 

Will the car idle? It sounds like the problem is with your DIY bov.

 

like takes the car a real long time to come back down to an idle?

maby the TB plates are sticking and dont close quickly? Maby a weird Vac leak?

 

The car idles great. It's just when I blip the throttle, it takes a while for the revs to come back down.

 

is your waste gate actuator arm hooked up to the wastegate flap?

 

Yes.

 

like what is a while? I know when i still had my stock turbo before i ported the waste gate even further my freinds s4 would drop in revs faster than mine not much faster... infact almost not even noticeable

 

When I blip the throttle, it will rev up, stay for two seconds at that rpm, and then slowly drop back down. Maybe three seconds from 2k rpm's to normal idle.

 

holy ****... are you sure that when you put your throttle cable back on it wasn't tightned or that you didn't play with the plates the runs the TPS? cause that sound similar to the problem i had after porting my TB. check these two things if that is not it... i am out of ideas... sorry

 

I did not mess with the throttle body or the TPS.

 

oh sorry... i thaught i read TB MOD not TID... sorry
hmmm .... chekc your home made BOV and make sure that the "one way check valve isn't too tight or even stuck... when I did it my first valve was accually broken and stayed shut no matter what the pressure... just a few suggestions

 

Checked the check valve, it's working properly. Thanks for the help though.

 

Up, Up, and Away!

 

O.K., I just went out and started the car and it will no longer hold an idle.

 

Anyone have any ideas?

 

Could it be that my MAF (s4) is on an angle or is this an intake/vacuum leak?

 

it sounds to me that you have a vac leak somwhere! if that is the case then you need to have someone start the car hold a stady iddle preferable arround 1000 then listen for hisses under the hood particularely arround the intake... These are usually where these occur.

 

Have you checked your dashpot?

 

Problem is fixed guys! It was a vacuum leak but with a little patience and persistence, I found it. Thank you all for your replies!