Subject	If it was stuck open, the combustion would be cooler
Posted by	Marshall on June 30, 2004 at 3:24 PM
	This message has been viewed 52 times.
In Reply To	maybe they meant "Inoperative" as in stuck open? (n/m) posted by ZEngineer (TT) on June 30, 2004 at 02:51 PM
Message	Under wide open throttle, when you'd most likely see detonation, the EGR would be closed. If it was stuck open, you'd have a cooler combustion but you'd lose some power. If it was stuck closed, you'd see no difference during WOT since it's supposed to be closed then anyway. I'm thinking they meant detonation at highway cruising speeds, when the mixture is leaner and the lack of a functioning EGR would make the combustion hotter.
Follow Ups	I was reading an article that stated this sentence: - ZEngineer (TT) 14:14:39 06/30/04 Lack of EGR does make cyls run hotter, so that makes sense. - Greg (Dallas) 14:18:15 06/30/04 I got rid of the EGR as well - ZEngineer (TT) 14:20:04 06/30/04 I doubt it is significant - Technomancer 10:45:23 07/01/04 sometime i get a check engine light, dealership - JDMz32smity 14:20:49 06/30/04 Probably a loose nut behind the wheel. - Dave N 14:34:34 06/30/04 it is SOOO hard to find good help these days (n/m) - JDMz32smity 14:36:46 06/30/04 Same here. It's always the EGR code on the ECU diag - SeedyROM 04:13:42 07/01/04 I thought that the EGR was closed under WOT? - Marshall 14:25:30 06/30/04 I do believe that is correct. (n/m) - Kenny 14:29:40 06/30/04 maybe they meant "Inoperative" as in stuck open? (n/m) - ZEngineer (TT) 14:51:04 06/30/04 Open = operating. So, I don't think so. (n/m) - Kenny 15:00:21 06/30/04 can open & close = operative - ZEngineer (TT) 15:04:05 06/30/04 If it's closed, it's not recirculating - hence not operating - Kenny 15:06:41 06/30/04 but if it's not operational, it means it's stuck - ZEngineer (TT) 15:11:17 06/30/04 False. - Kenny 16:02:36 06/30/04 2nd. (n/m) - YugoBernie (NoVA) 16:21:34 06/30/04 If it was stuck open, the combustion would be cooler - Marshall 15:24:17 06/30/04 What I don't get about that is the EGR is - Seb (Specialty-Z) 19:04:12 06/30/04 you are right, injecting "cold, burnt air" would be even... - Technomancer 10:44:34 07/01/04
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