Died while idleing turns over doesn't start

Sitting with it idleing died, tried starting it, it started, died agian and after that just turned over and over. Replaced Ignition Control Module, Another Sensor, Fuel Pump, Coil. It now tries to start but hasn't and sometimes a low pitch poof coming out of tailpipe. Took to shop timing is fine and pressure in fuel pump, they couldn't run diagnostics because it wont run. There was some white smoke that came out of tailpipe every now and then before this happened, mostly when I started it, more before it died when I would give it gas or sometimes while idleing, not all the time though. We have been playing the guessing game and I about give up on it, the shop did of coarse they dont know much about foreign vechiles where I live. He said something about air intake but really didn't know. I think maybe head gasket, but I'm clueless now. PLEASE HELP I NEED ADVISE. I have had this vehicle 9 yrs and other than this been really good.