S14A Bogging when cold

[bigjoe]

OK, So the last few days I have had a problem with my car bogging down/hesitation around 2500 RPM after 3 grand, It builds boost and goes fine, Right through to the limiter.

I have cleaned and gapped plugs to 0.8mm (iridium 7's)
Cleaned MAF
Checked for vac and boost leaks
swapped over the fuel pump (walbro 255) to a spare one I had
If I run with the lambda sensor unplugged it's a bit better, But the problem is still there?

running stage 1A supporting mods 12psi of boost (No chip)
once the car is warm its fine, Maybe slightly still a touch hesitant???

[Davus200]

Fuel cut, if you haven't got it mapped or chipped?

[bigjoe]

Its not the fuel cut mate, thats like hitting a wall lol