Race Egr

ok i just got a 95 dx hatch and it has the stock d15b7 motor for now. It has a ruff idle and it actually stalls out when stopped sometimes. I have tried almost everything just wanted to see if anyone else had diffrent ideas. I have adjusted idle speed, changed plugs, set timing, checked all hoses, and nothing works. It's not throwing any cel's. It does have a fields sfc controller in it however do u think that could cause it. thank you