Well as the title says my afm gze is cutting out when i give it some boost. over 5 psi basically. She just shunts backwards and a feeling that she is running on 2 cylinders, makes an unhealthy noise too. Exhaust pops when throttle is lifted and she runs fine again at low rpm.
I am thinking:
spark plugs (these have now been replaced, problem still apparent)
fuel filter
fuel pump
maybe dodgy afm
It used to only happen on very hot days +35 deg c
or when i had crappy fuel in it.
NOW it happening all the time no matter which 98 octane i use and all air temps. I have no leaks in my piping.
oh and it only happens after car has been at operating temp for 5 minutes or more.