05-04-2018, 04:26 AM
So I did a little more checking into the fluttering egr. I checked the vacuum coming from the egr solenoid. It stutters also on off every few seconds. The vacuum in the intake manifold is steady. I have attached a video. I also check the signal to the egr solenoid. I am assuming it is ground controlled?? The continuity to ground flutters in and out every second or 2. This happens at a steady throttle. Is the egr solenoid supposed to do that? If not what would be causing the signal to go on and off like that? I am thinking there must an input to the ecu that is fluttering causing this symptom. Am I on the right track? If so which inputs should I check. Thanks for your help!!!