DAVID, I'M THE CHIEF MECHANIC OF 10610 (FATHER OF THE DELOREAN). THE FREQUENCY VALVE WAS NOT BUZZING. THE VALVE IS NEW ABOUT 1000 MILES AGO BY THE PROIR OWNER. I STARTED CHECKING OUT THE ELECTRICAL CIRCUIT AND WHAT I FOUND WAS THAT THE LAMBDA RELAY WAS THE WRONG ONE. IT WAS A SINGLE POLE DOUBLE THROW. IT SHOULD BE A DOUBLE POLE SINGLE THROW. THE COMPUTER AND FREQUENCY VALVE GET POWER AT THE SAME TIME. I REPLACED THE RELAY AND IT STARTED BUZZING. FUEL ECONOMY GREATLY IMPROVED. THE ENGINE STILL DOES NOT RUN WELL ON WARMUP (EXCELERATION). MY NEXT STEP IS TO CHECK THE VACUUM TO THE WARMUP REG. CHUCK 10610 (DAD) --- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote: > Make sure the frequency valve on the right valve cover is buzzing. Fix > ALL vacuum leaks. Check the timing and mechanical and vacuum advance. > If the car hasn't been tuned-up in a long time replace the spark plugs > and ignition wires. > David Teitelbaum > vin 10757 > > > --- In dmcnews@xxxxxxxxxxxxxxx, "Kramer" <jettaman95@xxxx> wrote: > > Dear List, > > I noticed in the mornings when my D has been sitting out for the > > night. The car starts right up, and I can zoom off as fast as I > > please. But when I am leaving my neighborhood and turning into the > > main road. My car then begins to "hold back." I will step on the > > accelerator, and my car will not get up to speed like it did a few > > minutes ago. And this problem happening throughout the day. > > Please help. > > ~Kramer > > #10610