I've had this problem a long time and would really like to get rid of it so I'm open to idea's. Anyways here is the problem... My car will drive absolutely perfect under all conditions and temperatures. But when I roll on the throttle fairly quickly as soon as the turbo spools and the car starts to pull, the engine will act like its hitting a fuel cut and lose power for about half a second. Then it will come back to life and with a fairly harsh jolt. If I slowly increase the rpms it will pull smoothly all the way to redline. This condition only seems to be a problem when the engine is under heavy load. Thanks in advance guys.
fuel pressure: stock
afr: under load 10.0- 10.5:1 (possibly to rich and flooding the engine?)
intake: stock with k&n filter
spark plugs: played around with different plugs and gaps but nothing helped, currently running bpr7es gapped at .28
ecm and electronics: none bone stock, checked the caps a month ago and they looked good, but I'm not ruling them out.
Once again... I'm open to idea's.