Right im been working on the car again tonight . Iv put a brand new 3bar map on put a brand new rewire kit on the car . set the faze to .25 . Put the boost down to 15/16psi and its still poping and banging . iv only got one more thing i can swop out as ( Lambchop ) said do the filter which i will get a new one tomorrow the filter that is on the car has only done 4,000 miles but im will to try any thing as im pulling my hair out now as the car has had a fult like this from day one but it dose come and go but it has the fult 80% of the time .

we have changed

map sensor
tps sensor
fuel reg
chip
injectors
plugs set at .7mm and now at .6mm
ht leads
the car has wast spark now but the fult was there befor and its still here now
new crank pully
crank sensor set at .8mm
all wiring has been belled out and OK
new pump 044
new pump wire kit
phase has been tested OK and set at .25mm
fuel tank new when i built the car so 2 years old
fuel filter new when i built the car 4,000 miles