RS to RS-T, not running correctly Options

[Temp_Me96]

Well well well guess what! I got the turbo kit on my RS. But its not running right. For some reason Ive got a check engine light on for the MAP sensor. Its saying to high of voltage. Yes I do have the missing link on it. But the CEL was on before the missing link was put on. Im thinking the S-AFC is doing it. Any suggestion would be greatly appreciated. Anywho with the MAP freaking out the ECU is dumping way too much fuel so I had to put the stock fuel pump back in just so it would run. Also when it spools up it seems to be loosing boost somewhere either the couplers or out the BOV I cant seem to place it. I figure first thing is first fix the MAP problem then I can get to the boost creep after finding that replace the fuel pump and start tuning again. OH KOU I do still want the side mount IC if its still for sale.
I did purchase a wide band O2 with a digital read out on it so I could tune the car to perfection. It will log 44 min. and will hook up to a computer for close analysis. Cant wait for this toy to come in.
Well if anyone has any ideas or would like to check it out with me please let me know. I NEED BOOST!

[4g63tsi]

The 420A doesn't have a MAF sensor? I thought all modern fuel injected cars had MAF sensors. How does the computer control the engine? How does it read air flow and vacumm? I know most GMs have MAF and my wife's Neon has a MAF. What are you hooking you S-AFC to? Not doubting you though. It's just something I didn't realize. Good luck with the tuning.
Just a thought. Some how you have to measure Air flow to match the fuel flow. If it is measured before the turbo (no matter what the sensor is) and you are leaking air ( whether couplers or uncirculated BOV) you are going to run rich and your car probably will not perform its best. I would still fix the leak before setting up you wideband or S-AFC.
You said, "Im going to wait on trying to get boost until I get my fuel setup fixed. This way I dont lean it out or wash it out. " How can you adjust your fuel settings if you boost is inconsistant and incorrect? I wouldn't recommend driving around boosting the hell out of your car until you get the fuel and Air set up, but fix the leak first. Re-check all of your connections, from the exhaust manifold all the way to the intake manifold. Make sure they are all tight and aligned. Then tune.