My gts is a 2000 and it has had some different engine bogging and idle issues in the past but they were all due to vacuum and fuel leaks that have since been fixed. It now has a problem that is not severe but is a great inconvenience and I don't know what it could be. Most (not all) of the time when it is at idle and something else is turned on (like the fan or the ac even just the interior air with no ac on) it will bog down and or start reving its self and it revs so low that is sounds like it is going to die. In these cases I have to just turn the ac or whatever off or else put it in neutral pull the e-brake and put a little gas on the engine till the light turns green. The fan running never makes it rev but it will bog a little. But I have to be able to use my ac this summer because I cant roll down my windows long due to exhaust leak that I really don't want to have to fix right now (broken off exhaust bolt - I would rather fix whatever this is than tap that out). If anyone has been through this or know what it is that would be awesome. Also don't tell me it is a MAF sensor because every time I have ever taken it to a mechanic for anything they blamed the MAF and it has been replaced at least 3 times since I bought the car. Thanks.