Hello I have a serious problem with car! My audi tt 225 is chipped and than one day it wasnt going so good! I found that my intercooler pipe is teared and I changed it to new! Everything is okay now BUT I have stock 225 power not chipped cars power! Please help me with your advices??? Thanks

 

check for other split pipes

 

What chip does it have? My GIAC I can change between stock and chipped, yours might be in the stock mode. Good luck

 

But how to change to the chipped mode?????

 

Well with my GIAC there is a external switch that plugs into your ecu port and you have to change it that way, but if you dont have the external switch then you are screwed, but you need to make sure that you know what chip you have in it first. I think all of them work alittle different.

 

Hello again And now I can add something new! Today I have tried to unplug MAF sensor (Air mass sensor) and my car was going the same even maybe a lil bit better. Maybe my maf is out of order - full of ****????? Please your oppinions!!!!

 

i know that my ford had a bad MAF and saw the same symptoms that you describe. changed it and it was back to good shape. it could definatly be your MAF.

 

It's most likely the MAF gone bad. It's a fairly common failure part. The other possibility is a cracked or leaking vacuum/boost hose, only a pressure test can tell for sure.

If you have a VAG-COM, record blocks 002 (MAF) and 032 (a/f adapt)

Make a couple of 3rd gear WOT and look at the data.

On block 002, the g/sec should reach around 150 for a 180 and around 180 for the 225. Anything higher is fine. Lower number indicate a bad or failing MAF.

Block 032 should be a little lean on both settings. Optimal should be 0, but usually the partial throtttle is around +3.1. If either moves 10% higher or lower, the computer will put the car into limp mode and boost will be around 5psi.

 

Thanks for scientific advices)) My car now has stock power or maybe more. Before that I have changed intercooler pipe. Whad do you mean about vacuum hose??? Is it connected on the top of the blow off valve???? And i also have dry type Apexi filter, maybe this is the reason of broken maf Sensor????

 

There are several hoses that connect to the turbo, intake, DV, N75, PCV, any one of which could have a split or loose fitting. It's difficult to locate these without performing a pressure test on the system. You can get yourself one of these and DIY or take it into a shop.