DashingDaryl Posted September 10, 2004 Report Share Posted September 10, 2004 I failed emissions with my 95 Deville (Non Concourse) The flyer the emissions guy handed me explained it was most likely an EGR problem or a Timing issue. Since our cars are timed by the ECU, I am assuming it's an EGR issue. The weird thing is my car doesn't show any codes when I check the on board computer. Every thing reads fine. The car knocks when I accelerate. It also isn't doing so hot on Gas Mileage. Does that sound like an egr problem to you, or could there really be a timing issue? I replaced my ISC and that thing you have to calibrate with a Volt-meter but other than the knocking, the failing and the gas guzzling, things seem to be ok.. Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.