Fresh Rebuild. Boost Leak?

cinciguy89turbo

Zero to Sixty
Apr 7, 2009
139
0
0
Cincinnati, Ohio, United States
Hey guys just got the supra back. Fresh rebuild was running like a champ. All of a sudden on the way home from the shop she got really weak at a stop light. I figured maybe she is working out some kinks. The guys told me I would need to replace my BOV because it occasionally sticks. That's fine. It ran good for about a day, then all of a sudden it's hesitating during acceleration (boost or no boost) pretty hard. She idles kinda rough at times, and will hesitate at consistent speed. When I first start it, she runs well cold, but when it warms up she starts all of this. The other day at a light I noticed that there was a pretty good amount of white smoke that came from the exhaust. It stopped after I took off. I noticed it again at idle and smelled it and it smells like she is loading up. I figured boost leak, but if it was a boost leak wouldn't she run bad all the time? And would a sticking/leaking BOV cause all of this? Oh there is a check engine light, but only comes on at highway speeds, and when I slow down it goes away so I am unable to check.
Thanks for any help guys
 

cinciguy89turbo

Zero to Sixty
Apr 7, 2009
139
0
0
Cincinnati, Ohio, United States
Just took the car out again. It was cold when I started it. I let it run for about 20 min. Double checked all of my clamps, got in it and it ran perfect. I drove around for a bit, slowly the problems began. Down to a jumpy tack (never stalls). And an occasional back fire shifting from 1st to 2nd or 2nd to 3rd can't remember. Vacuum at idle, which I can't get a real idle is like 16.