Sorry for this repeat subject but I need more input from some of your expertise on "diagnosing" my problem.

02 TT with 22k , with the following mods
1. upsolute for past 7k and no prob, 1.0-1.1 bars
2. Evo billets DV -7k miles
3. RUF exh
4. Evo intake (original filter and now oil-less )

A month ago, my ABS/PSB/CEL came on, I put the OEM air box in for the dealer to replace my faulty MAF. Ever since I picked up the car (now put on 3-400 miles), the problem is now I am only getting 0.7 bars max.

I got the new oil less filter from EVO and the EVO intake is back in.

I cleaned the new MAF (just in case) per Ruiner's thread with the contact cleaner and no results.

I even replaced the f diverter valve hose with IA silicone hose and no results.

Checked with the dealer which they state they did not do anything to my ECU

Checked with Upsolute and they say the new MAF cannot change the ECU program.

The car drives fine- just like a stock TT, no noise, lights, honking noise , etc.
Have inspected all lines, hoses etc.

Any ideas what I should do next????
I am tempted to have ECU upgrade to PSI/ or GIAC , but I want to make sure there any other problems that I might end up with the same no boost situation after the flash.

Experts chime in please!! Thanks a bunch in advance!!
TC

 

I would be that they did a flash over the ECU even though they say they didn't. We see this all the time. Their response is no I just updated the maf and the software for that! LOL, well that is what it takes.

The only other thing is the system could have a boost leak. You would have to have it pressure tested to know for sure. I suspect that you have lost the program is all.

 

Thats exactly what I said last time TC asked... Talk to upsolute and explain the situation they might do you a "good will" chipping.

 

you guys are probably right, I have a suspicion that the ECU has been remapped to stock.
Kiko, you called it!