I just did a gsr swap in to my coupe and the idle is high for sum reason. It is idleing at 1500 when we have set the ecu for 700. I have done all the basic check like checking the vacum lines and the lookin for any leakes but nothing. The only thing I found is the line from the break booster is not getting persure at all. Not sue if is the booster or the lines. Couldn't find any holes on the line. Does anyone have any ideas.