Subject	EGR cleaning
Posted by	inf on July 10, 2012 at 2:41 PM
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Message	So I cleaned the EGR tubes as far as I could from the point where it connects into the plenum. They were totally clogged. I coat hangered them until I could shoot air into one hole and have it come out the other hole on the other side of the plenum. I algo put vacuum to the valve to keep it open. I smogged it today and the NOX was even worse than before. I've exhausted all other possibilities for the cause of NOX and am sure it's EGR related. The car will die while idling if apply vacuum to the valve and the solenoid operates correctly. My question is, since air can blow from one tube opening to the other and the valve can kill idle..is there still something clogging the EGR?
Follow Ups	EGR cleaning - inf 14:41:33 07/10/12 I was reading up on EGR valves stuck open and apparently - inf 14:46:14 07/10/12 That is, stuck partially open of course. - inf 15:18:50 07/10/12 One more bit of information - inf 16:25:19 07/10/12 Was the car able to pass inspection previously with - jzack 21:24:07 07/10/12 nah, it failed like 6 times in a row so far...good thing I'm - inf 21:38:00 07/10/12 Quick question... - inf 21:40:16 07/10/12 or is this a positive backpressure valve? - inf 21:46:35 07/10/12 Re: Quick question... - ALee 00:44:40 07/11/12 I checked the solenoid... - inf 10:04:45 07/11/12 Re: I checked the solenoid... - ALee 17:55:32 07/11/12 Well I didn't use a vacuum gauge, but I know when I - inf 18:21:08 07/11/12 Re: Well I didn't use a vacuum gauge, but I know when I - ALee 19:18:23 07/11/12 Crazy... - inf 22:10:06 07/14/12 by the way, feel free to stop by my shop sometime - inf 22:11:48 07/14/12 Wait, one last thing... - inf 22:21:01 07/14/12 Wait... - inf 23:51:05 07/14/12
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