my problem is,,, the car starts and tick over perfectly, it revs perfectly..

but when i try to set off in the car it wont pull away,, keeps trying to stall,,, its as tho any preasure on the engine it tries to die... so i dont know what my problem is,, maybe the map sensor???
ALSO I AM RUNNING OFAB MANAGEMENT>...

 

i had same prob on my frst ofab, it wouldnt let me drive over 30 in 5th with foot on the floor but would rev fine at standstill, mine if i remember rightly was down to a boost leak on hose from turbo to intercooler