Boost Issues / Boost Leak?

[I.AMMahoney]

I just installed a Whoosh V3 FMIC about two weeks ago and added a dizzy stage 2 tune. I also changed my coils (NGK) and plugs (6510)

The car was driving phenomenal up until yesterday, when i would get up to around 18 psi for boost the car would start stuttering and would stop making power. It felt like something was shaking up front. I stopped trying to boost and drove the car home without using the turbo and the car drove normal, no issues and no lights. When i got home i switched my tune from the dizzy to the cobb OTS and tested again. This time my boost stopped around 13 psi and wouldnt go higher. i could hear the turbo spooling then would catch and put a little boost out but then immediately drop in pressure and stop making power.

I just checked all my hoses, and everything looked secure, no loose clamps and all hoses were attached.

I saw a thread the other day that seemed like the same issues and they said the coils were the problem. So i checked the resistance of all the coils and there were no big discrepancies between any of them.

Any other ideas of where to start looking?

 

[I.AMMahoney]

Problem solved ,
Dug my old ignition coils out of the trash and threw them in. Problem went away.
I bought the NGK coils from rock auto , worked great for a week before this problem arised.

 

[Mycooking]

My last car 2004 scion xb ate ignition coil #1 like clock work every 5 years within the day lol. I tried NGK once.... 2 weeks in it was toast despite all voltages in operating spec. Went back to a Toyota brand coil waited 5 years for it to crap out like usual.