its so funny how one keeps up with all the tune ups and and still fail the emissions test.
My 1993 SSEI bonneville failed 3 times on the emissions test even after a full tune up with irdium spark plugs and taylor wires and PCV valve.
I was wondering has anyone ever had this problem. I changed my PCV thinking this would solve it. sometimes the SES light would come on and off when your driving but never stays on. I checked the EGR valve (those damn things are expensive) didnt seem anything wrong with it, I put a new gasket on it and now it runs real rough after just putting in a new gasket. No leaks on the gasket, which I checked. I did push the 3 holes up and down on the egr valve to see if the worked. I'm wondering after pushing the valves up and on to see if they work did anything to make it run rough. Is there a solution in fixing this or should I just get a new EGR Valve. Which I am going to do anyways just for my knowledge of knowing its brand new.
1993 SSEI Bonneville,in Bright white factory paint with aerolite factory wheels, stage 2 jet performance computer ECM, Heavy duty cryogenic crossed drilled police interceptor front disc rotors with extreme 911 pads, upgraded MSD ignition coils, NGK uridium spark plugs- replaced with Nology Silver spark plugs( The best), K&N air cleaner, JVC 12 CD disc changer and Sirrus radio.