Renault Scenic DCi 80, P2413 OBD-II "Exhaust Gas Recirculation System Performance"
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From: Tim.. on 9 Mar 2007 04:07 "Coyoteboy" <coyoteboyuk(a)hotmail.com> wrote in message news:iu2dnRBTNvL7FW3YnZ2dnUVZ8tmhnZ2d(a)bt.com... > > "Brian" <blecnospam(a)tesco.net> wrote in message > news:GMyHh.31561$tz6.23523(a)newsfe2-gui.ntli.net... >> In practice, they do very little >> good, and many people disable them. >> As long as it has stuck closed, then don't worry. >> >> > > They actually do a lot of good, and disabling them doesnt really do much > but increase emissions. I believe, on TDs, the EGR can have a HUGE effect > on power- according to a technical note i was reading a while back - > something like 20%?! Yes, on TD's you LOOSE upto 20% with the EGR operating... With no EGR, NOx's do increase slightly. If at all possible, blank it off. Tim. ..
From: Chris Dugan on 9 Mar 2007 05:07
> > They actually do a lot of good, and disabling them doesnt really do much > > but increase emissions. I believe, on TDs, the EGR can have a HUGE effect > > on power- according to a technical note i was reading a while back - > > something like 20%?! > > Yes, on TD's you LOOSE upto 20% with the EGR operating... > > With no EGR, NOx's do increase slightly. > > If at all possible, blank it off. > > Tim. Would that also affect fuel economy... either directly or indirectly by the driver compensating for the open EGR valve? Chris |