Sputtering and cutting out

[dsm604]

Okay i have a 92 talon, the problem seems to only happen once the car is really warmed up. It'll drive and up boost no problem but once its warm up the car seems to sputter at around 3500-5000 RPMs and the check engine light will come on for a few minutes then go away. I have changed the plugs to new NGKs and re gapped them to .028, also changed the plug wires to brand new NGKs, also swapped a newer TPS as well. What could the problem be to make it run like crap once its warmed up? coilpack? major boost leak?
Any help would be much appreciated, thanks for reading

The mods i have on the car are:
2G MAF
16 G turbo
Full 3 inch exhaust from the turbo back
510 injectors
Walbro 255
Aftermarket boost gauge of course
Was boosting at 14 PSI but the car will still sputter even at 8 PSI

 

[tbonitz301]

Have you done a boost leak test? I would try that first.

 

[redyute1]

if the check engine light flashed or flashes then it would have stored a code and i am pretty sure once u get a diagnosis done u will have a more clear idea whats going on

 

[dsm604]

tried the boost leak and it seems be fine. Anyone else with this strange problem?
Car runs fine until its warmed up, im leaning towards the coil pack.

 

[leathaltsi]

You say you have a 2 maf and 510 do you have an afc or any tuning tool. Also I see you have a 255 pump. You need an afpr with that or you will over run the stock one, and there is no way to tune "over run"