as for the sensors i would put all back in personally, the computer uses many of them to run your engine. which ones, i couldnt tell ya exactly. as for the air pump, it can be lost by simply removing it and the tubing to the h-pipe. make sure to weld the holes closed in the h-pipe. however, you will need a new belt for it. the egr is also pretty much for emissions too but i'm not positive if it plays a role in idle or throttle response at all. you might be able to get away running without it if you get a new chip programmed for no egr and no air pump either. hope this helps a little bit.
|