Thanks a lot to both of you for the tips. I will pass this on to him and see what he can find out. Yes, the car did run with the RPM relay bypassed. Brandon -------------------------------------------------- From: "content22207" <brobertson@xxxxxxxxxxxx> Sent: Sunday, February 05, 2012 12:20 PM To: <dmcnews@xxxxxxxxxxxxxxx> Subject: Re: [DML] New RPM relay, still no go. > Slight clarification of Martin's post: White/Gray originates at the > Ignition ECU (it's a ground that is switched on & off by the ECU), then > separates at a soldered junction inside the relay compartment (likely > intact) to various devices: coil, RPM relay, idlespeed ECU, and dash tach. > Coil is at the end of one of those lines. > > Everything depends upon this sentence in your original post: "... He > suspected a bad RPM relay as it would work when bypassed with toggle > switches...." Do you mean the engine worked (ran) when the RPM relay was > bypassed? If so, the distributor pickup and ignition ECU must be OK, > otherwise the engine would not run. > > Your mechanic should be able to see an ice pick light flash on & off as > the engine rotates at the White/Gray wire in RPM relay harness connector, > just like the negative side of the coil. > > That wire should of course ring out to the coil as well. > > If your mechanic can not ring out White/Gray between the RPM relay and the > coil, and if the engine in fact runs with the RPM relay bypassed, the > break has to be between the soldered junction in the relay compartment and > the RPM relay harness connector (about 1 foot apart from each other). > Everything between the soldered junction and coil/ignition ECU would have > to be intact for the engine to run. > > Bill Robertson > #5939 > > --- In dmcnews@xxxxxxxxxxxxxxx, "Martin Gutkowski" <martin@...> wrote: >> >> The white/grey wire breaks out at the coil, idlespeed ECU, ignition amp >> and rpm gauge. However, has he checked the connection from distributor to >> the ignition amplifier? If the amp doesn't "see" the signal, it won't >> generate a spark signal, this is the source of the signal, not the coil. >> >> Martin >> Sent from my BlackBerry® >> >> -----Original Message----- >> From: "Payne" <bpayne@...> >> Sender: dmcnews@xxxxxxxxxxxxxxx >> Date: Mon, 6 Feb 2012 10:18:39 >> To: <dmcnews@xxxxxxxxxxxxxxx> >> Reply-To: dmcnews@xxxxxxxxxxxxxxx >> Subject: [DML] New RPM relay, still no go. >> >> Greetings, >> >> I have a mechanic working on getting my D out of storage and running >> again. He suspected a bad RPM relay as it would work when bypassed with >> toggle switches. After replacing the relay it still would not work. I >> will copy what he wrote to me in the last email. >> >> "Unfortunately the relay did not fix the problem. I believe the >> problem lies in the signal that comes from the coil. In looking though >> the manual it shows that #1 terminal from the coil goes to the RPM >> Relay, which is the signal the relay is looking for. When doing a >> continuity test from the coil to the RPM relay it has a broken signal. >> The manual is very vague on the routing of this wire but I think it goes >> through the something else." >> >> He is unfamiliar with the DeLorean but seems to be great with European >> cars of this era. Is the manual misleading us and is there something else >> we should be looking for? >> >> Thanks for any help, >> >> Brandon. >> >> [Non-text portions of this message have been removed] >> >> >> >> ------------------------------------ >> >> To address comments privately to the moderating team, please address: >> moderators@... >> >> For more info on the list, tech articles, cars for sale see >> www.dmcnews.com >> >> To search the archives or view files, log in at >> http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links >> > > > > > ------------------------------------ > > To address comments privately to the moderating team, please address: > moderators@xxxxxxxxxxx > > For more info on the list, tech articles, cars for sale see > www.dmcnews.com > > To search the archives or view files, log in at > http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links > > > ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/