Originally Posted by elsolo
I would start pinching of vacuum hoses looking for a vacuum leak.
4 services did this, they found no leaks. it doesn't behave like a leak either, it's exactly the same every time, no fluctuation
Originally Posted by Djzx3
15.5V seems high? Should be 14v's.
Maybe the alt is over charging, and give the TB a weird voltage reading, which translates into a weird idle?
This is why I suggested you come here and ask, people here know a real lot about all this.
Welcome, and glad to see you made it over here.
thanks, it was 15.5V, now it's 14V - after i changed the alternator and battery