Since my tune-up my fuel economy has increased dramatically. This last tank got me 22.4 mpg which is up from about 16~17 mpg. My plugs were way over-gapped and maybe even the wrong heat range. The distributor cap had two carbon traces from the center button to the perimeter electrodes. There were a few "hot spots" that appeared to be arching through the side of the cap, but only visible from the inside. I suspect the distributor problems were caused by the over-gapped plugs -- not a good enough correct path for the spark to go, so it found others. I still hear electronic rattles in the car, but they aren't near as loud. I suspect this was from secondary ignition breakdown. The tachometer would rattle according RPMs. Before I removed the door ajar buzzer, it would rattle in sync with the tach too. The car was having a hard time starting since the tune-up. I thought it might have been a drippy (although new) fuel injector. But Ken watched me start it, and there was no black smoke (signs of flooding). So next I suspected that the relay for the ballast resistor wasn't giving a full 12V to the coil during cranking. I jiggled all those connections, and now it starts fine. Time will tell if this was the problem. In the process of removing/replacing the intake manifold, I cleaned the ground on top of it (toward the front left). Now I notice that my dash volt meter shows more. Cool. Why it never occurred to me to clean this ground before escapes me. Walt [Non-text portions of this message have been removed] Yahoo! Groups Sponsor <http://rd.yahoo.com/M=251812.3170658.4537139.1261774/D=egroupweb/S=170512 6215:HM/A=1564415/R=0/SIG=11t6t7kdo/*http://www.netflix.com/Default?mqso=6 0164784&partid=3170658> <http://us.adserver.yahoo.com/l?M=251812.3170658.4537139.1261774/D=egroupm ail/S=:HM/A=1564415/rand=782867036> 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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