15 MPG is awful mileage. No wonder the car smells "gassy". First off look for fuel leaks, that can kill your gas mileage. Next go over every vacuum hose. Make sure they are all soft, not kinked, connected right and don't leak. If the car hasn't been tuned-up that is next. Have the fuel injectors cleaned and replace the injector seals. Your fiddling with the mixture screw is a hopeless attempt to richen the fuel mixture to make up for the vacuum leaks. Dragging brakes can also kill mileage. If the fluid is dark and thick flush the brakes, you might have a sticking caliper which means rebuilding the brake system. Alignment affects mileage. Look at the tires and see how they are wearing. Finally for your hard hot start pull the short rubber hose off the back of the accumulater and attach a hose from the accumulater into a pail. Turn the key on and see if fuel comes out of the accumulater. If it does then order a new one. A bad accumulater doesn't affect performance or mileage, only hot starting. Vacuum builds up almost immediatly once the leak is stopped. Vacuum is Power! So if you don't have vacuum you don't have power. Vacuum is how the engine gets the combustible mixture inside, the higher the vacuum the more fuel, the more power. This only applies to naturally aspirated engines like a stock Delorean. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "K. Creason" <dmc4687@xxxx> wrote: > That's interesting John. Now I've got to speak up and my twists to this > situation. > > I've been monitoring this thread because I have similar issues after my 30k > miles service, and leaning my car out. I've probably leaned it out tooo > much, but I was trying to find out why I only get 15 city mpg; how hard I > drive makes almost no difference. > Early morning or four hour parked starts smell very gassy and run rough, > almost bad timing-like. I did have a bad vacuum hose on the timing advance > unit, but that is fixed. I'm thinking something else is losing vacuum and it > takes time to build it back up after starting? Say the system loses vacuum-- > how long does it take the system to get it back up? And if you lose vacuum > in one part, does it effect other parts, like the air mode switch? > Hmmm, reminds me that last summer I had starting issues if the car had been > sitting in the hot sun for all day. Never did solve that, it just became > less of an issuel. Is that the fuel accumulator? Could that be working in > tandem or is that my real problem? > > -----Original Message----- > From: John Hervey [mailto:john@xxxx] > Sent: Monday, June 23, 2003 11:23 PM > To: dmcnews@xxxxxxxxxxxxxxx > Subject: RE: [DML] Re: Stalls after starting > > > As David says the CPR ( Control Pressure regulator ) Warm up regulator could > be going bad, but also the 02 adjustment could be adjusted to lean not > allowing the control plunger in the fuel distributor to rise high enough. If > it doesn't rise then very little or no gas goes to the injectors. If you try > to start it and it dies, Then pull a plug as fast as you can and see if it's > wet or dry. > John Hervey > > > -----Original Message----- > From: David Teitelbaum [mailto:jtrealty@xxxx] > Subject: [DML] Re: Stalls after starting > > The first thing that comes to mind would be to check the control > pressure regulater aka the warm-up regulater. > > > > --- In dmcnews@xxxxxxxxxxxxxxx, "painintheass7565" <advantics@xxxx> wrote: > > Howdy. I have two D's and one runs like a top and one has this > > problem. I starts right up but unless I keep my foot on the gas it > > stalls out. > > > To address comments privately to the moderating team, please address: > moderators@xxxx > > 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/dmcnews > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/