i just recently got a 93 fox 302 from someone who didnt know much about the car, he says there is a mild cam in the car but doesnt know which one it is. the car runs strong and is very fast but it needs some tweeking. the problem i am having is that i idle at like 1000rpm i changed the idle air control valve and the tps nothing changed except that its a little more steady. i pulled the codes and it says insufficient egr flow and egr circuit failure but the egr is deleted. so i dont know what it could be. idle is also at times inconsistant and will jump occassionally. another problem is when at a stop when i put the car in gear it acts like its going to stall really quickly then jumps back up. this happens in any gear (5speed) check engine light is only on when in gear. any ideas?