Hi Levent Cur wrote: > ...I have checked the Vacuum Hose going to the > ECU and the one under the black cover, I checked > the lower intercooler hose that is fine... Check the _upper_ IC hose, the one goes to the throttles inpipe from the cooler. I bet You´ll find there a crack. Very easy to remove, bend it and check the bottom areas of the hose. HTH j-pm