my fd use to idle at about 1300 rpms and vacuum at 15. now it idles at 1000 rmps and when i turn something on like my rear defrogger the car wants to turn off. Plus to start my fd i have to play with the gas pedal to start it and when its hot and i turn it off its hell to get it back on. Whats wrong and how can i fix to problem.

 

get a compression check dude it sounds like yur engine is gettin a little weak on ya.. or you may have a vacumm leak somewhere i think my engine pulls 20 vacumm idle at 1000rpms . but for real get a compression check and check yur map sensor