Until engine warm. Only responds to drops in manifold vacuum thereafter (acceleration enrichment). That is *IF* CPR plumbed for vacuum. CPR on my new engine has no barbs whatsoever. Am at work so can't cite series. 038 series on my R30 (just bought a never used spare $75 on eBay! Test drove to NJ) only has one barb adjacent to electrical connection. Martin G is correct -- is vacuum enrichment for that series, not a vent. 066 series on DeLo of course uses two barbs in lower casting. I believe barb in upper casting doesn't connect to anything in that series. Or perhaps is a vent as I've been told (don't get me to lyin' -- don't have one). CPR is basically a choke. Limits air sensor plate movement with counter pressure on metering piston. Bill Robertson #5939 >--- In DMCForum@xxxxxxxxxxxxxxx, "Dave Stragand" <dave.stragand@xxxx> wrote: > Yes, but the CPR controls pressure between the top and bottom chambers, > correct? > > -----Original Message----- > From: content22207 [mailto:brobertson@xxxx] > Sent: Friday, November 14, 2003 6:13 PM > To: DMCForum@xxxxxxxxxxxxxxx > Subject: [DMCForum] Re: Re Re De-activating lower chambers > > > Fast idle: aux air valve > Accel enrichment: vacuum to CPR > > That's how PRV originally did it... > > > > [Non-text portions of this message have been removed] Yahoo! Groups Sponsor <http://rd.yahoo.com/SIG=12cb8816u/M=259395.3614674.4902533.1261774/D=egro upweb/S=1705126215:HM/EXP=1068940692/A=1524963/R=0/*http://hits.411web.com /cgi-bin/autoredir?camp=556&lineid=3614674?=egroupweb&pos=HM> <http://us.adserver.yahoo.com/l?M=259395.3614674.4902533.1261774/D=egroupm ail/S=:HM/A=1524963/rand=238234149> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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