The car is a 91 turbo with exhaust, apexi intake and greddy boost controller.
Recently my alternator died so I got it rebuilt and replaced it.
Ever since then the car has not been going into cold idle when its cold and idle rough even when warmed up. Normally my boot gauge shows 21lbs of vacuum, now I'm all over the place when idling, from 10-20lbs but usually around 15 which isn't normal for my car. The car tends to idle around 500-1000rpm and doesn't really stay constant. I've also noticed the car smokes a little more than normal but its not spewing smoke or anything.I've looked over all the vacuum lines and tightened all the hose clamps everything checks out.
Spark plugs are all clean and it seems like its running properly. The car drives fine and doesn't seem to have any loss of power.I'm really stumped at this point and I'm not sure why the car isn't idling nicely and where I'm losing vacuum, any help would be greatly appreciated.
Thanks