91 civic hatch with d15b1 block and d16y7 head.
smokes ridiculously (oil)
ocassioanly hear a high pitch whislte, usually indicates vacume leak but cant find it.
occasionaly i get a really high idle, thts when it smokes the most.
sometimes the idle will also go up and down....
it also stutters really bad but not all the time.... example, it did it from point a to b which took maby 10 min. turned car off for a few hours, turned back on still did it for the next trip. turned car off for maby 20 minutes and when i turned it back on it didnt do it again until like a day and half later.

did a compression check tht looked good... checked for a vac leak cant find one.... and i just dont kno where to go from here...

ooo and it still has dpfi on it.... want to convert to mpfi just havent had the time... could this be the issue?

 

plugged/malfunctioning PCV?