Cutting out problem Options

[TURBOWHT]

So my truck is still cutting out. If you guys done know its a 4g63 swapped dodge ram 50.

The truck was running good. never cut out. then one night. WOT the truck would creep alot and cut out. Fuel cut i assumed. Well the next day came and would cut out at 8psi. but would let me rev it from a stop just fine.

well started it up the next day and reved it up and now it cuts out from a stop. It shows im building 15psi just reving it up. Something is seriously not right. and i cant figure it out.

Here is what is done to the truck and what i have done.

The only aftermarket thing on the truck is a gm maft and greddy type s. and inline walbro fuel pump.

I put new plugs in it. bpr7es, thinking i fouled one and it cuts out high rpm. thats not the case.

I tightend down my intake manifold. for some reason the bolts backed out. So i thought that would fix it. nope. didnt still runs like crap. I checked the pipes and reseated them.but i havnt boost leak tested it since i dont have a tester.

Do you guys think its a boost leak? or something else? Could ecu cause it to cut out like this? because im pretty sure the caps were bad, it was smoking and smelled like ass one day. But i have no clue what the ecu does when it goes bad.

Anyhelp or something to check for would be great. thanks

[natedogg]

Here's my reasoning for thinking its a boost leak. If you are cutting out at 8 psi, that tells me the turbo is working hard enough for the MAS to register enough air to trip fuel cut, but you are only building 8 psi so you aren't even tripping the WG actuator. That because a bunch of the air the MAS is sensing is escaping somewhere between the turbo and your engine. If you didn't have a boost leak your turbo would probably be building enough boost to trip the WG actuator.

Now as far as building that boost from a dead stop, I'm not quite as sure. Usually that means you are putting some kind of load on the engine. You using heavier than normal engine/transmission oil?