It sounds like your warm-up circuit is not working. The control pressure regulator, also known as a warm up regulator, may have failed. I quote: "When the engine is cold, the warm-up regulator reduces control pressure, causing the metering slits in the fuel distributor to open further. This enrichment process prevents combustion miss during the warm up phase of engine operation." Briefly, there is a bi-metal element in there like your thermostat at home. The plug on the regulator heats it up gradually, and the control pressure increases about the same time it takes your engine to warm up and not need the extra fuel. One other possible cause I can think of: The idle speed regulator (the cylinder mounted on the driver's rear of the intake manifold) controls the amount of air for the engine at idle. There is a sensor in the coolant distro pipe that overrides the idle speed ECU when the engine is cold, providing extra air along w/the extra fuel that the warm up regulator is providing. If that thermistor failed, you would get extra fuel but not enough air to burn it. The sensor is cheap, getting at it is a b!#@$. The warm up regulator is expensive, but easy to access and replace. You pays you money and you takes you frame of reference. :-) I'm sure others will chip in on the MPG question. Mine's not running yet. Rich --- In DMCForum@xxxxxxxxxxxxxxx, "rmclemns" <rmclemns@xxxx> wrote: > Ok guys and gals, here's one that I don't want to tear into until I > get some of your inputs. > > When I first start my DMC, it will run about 2 seconds and then die, > unless I feather the gas. After about 10 seconds of feathering the > gas, it will jump up to 2000-3000 rpm and as soon as I back off the > gas, it starts missing on 1 or 2 cylinders and tries to die. After > running 2-3 minutes at my "self induced" high rpm, everything is > normal. Idle settles down to 750-850 rpm and it runs as it should. > It appears to me that the warmer it gets, the better it runs. Any > ideas or things I can check before I start taking things apart??? > > Second, what kind of gas milage do you folks get on your cars?? I've > heard everything from 14 to 32 mpg and I'd like to have an idea of > what to realistically look for. > > Lastly, I've got a couple of DMC jacks that I'm going to list on > ebay, but I thought I'd offer them to the forum first. One is an > original Type 1 (small foot) and the other is a Type 2 (long foot). > If anyone is looking just send me an email. > > MIKE #2 > 1630 Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=194081.3551198.4824677.1261774/D=egroupweb/S=170512 6215:HM/A=1663535/R=0/SIG=11ps6rfef/*http://www.ediets.com/start.cfm?code= 30504&media=atkins> click here <http://us.adserver.yahoo.com/l?M=194081.3551198.4824677.1261774/D=egroupm ail/S=:HM/A=1663535/rand=410267060> 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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