not sure where to put this so,,,,,,

ok i have a 94 camaro with a 385, fully built, tti front mount with a 76mm turbo, its a 6speed, new opti. ok. tonight i was driving home and ev erything has been perfect up till now and the car started sputtering, missfiring, or something. i could fell and hear it. it felt like i was running out of gas but wasnt. my fuel pressure looked fine, on my gauge and a/f seemed ok bout 13.5 cruising. well the stumbling/missing started geting worse and when i let it idel it backfired a little, and wanted to die, but i gave itgas and it didnt. got home and it died and wont start. wtf!!!!! i have noticed it taking longer to start also, turns over more than ussual. what do yall think?

 

If you are still running a MAF, check from there to the throttle body for air leaks. One of the connections may have came loose during boost.

 

ok i went and got it started today, but i had to hold the gas pedel all the way down and it started, it seems to be smoking a bit, and it is pullin a little less vac than ussual. could fouled plus do this, what bout o2's?

and i check for leaks, didnt see anything abnormal

 

When it's running, what are you seeing on your Vac/Boost Gauge as far as vacuum at idle? What are your BLM's looking like at idle? Have you pulled the plugs to see if any are showing lean/Rich? I'm going thru something similar with my fresh motor but I don't have it in front of me. Damned car transporter keeps saying tomorrow, tomorrow, but each day it's the same response to my question "Will it be here today?". Let me/us know what you find. I'd check every vacuum source, PCV, couplers, tubes going to/from Wastegate/BOV, vacuum nipples from/to the intake. If you have a scanner, at least that might narrow it down to one side of the engine. Mine is bad lean on the drivers side, while the other BLM/O2 shows more normal settings. I think I have either a vacuum leak on that side or one of my used 'bought off the internet' 60# Mototrons is not doing it's job. I will find out Wed(the latest projected date for delivery)

 

Also, get a scanner or volt meter and test your Throttle position sensor readings. Should start at .6 volt at closed throttle, escalating in a linear fashion to around 4.6 volts at WOT.