Today I bought myself a carburator cleaner and thought about trying this method to check for vacum leaks AGAIN, and found some great plastic vacum tubes that will remove any doubt. Also bougth all the gaskets brand new and oem to replace because when I swapped the engine the mechanics put some no name gaskets. I sprayed it all over piece by piece, and found some vacum leaks in the back od the intake, somewhere under, didn't quite know what was it. I suspected the ICV tube that goes to the rubber tube after the MAF.
That being said I started taking the intake apart and guess what. You won't believe this. The intake is secured on the block with two rows of bolts, superior and inferior. The two inferior bolts, have each a guide, a cylinder to help the intake sit better.
Guess what they did? Put both the guides on the same bolt the one betw cyl 3 and 4. One guide on the head and one on the intake and then sqeezed it. Imagine what i found there. Took me 2 and a half hours to get it out without damaging the head or intake.
I believe that the only time I can be sure that something has been done correctly to this car is when I'm going to do it myself.
So I believe part of the idle problems are coming from that direction. Did not put it back yet, because I decided to also change the solenoid switch, it always caused me problems in summer. So tommorow I hope to reassemble it back together and come up with some good news.
Regards,
Dinu
