I would first suspect worn parts in the ignition system. With 23,000 miles worn plugs, old cap and rotor, breaking down ignition wires can all contribute to hard start. If these parts haven't been replaced or are more than 10 years old I would start with them. Also inspect the wires at the white ballast resistors on the firewall on the left side and the relay just below them. Make sure everything is clean and tight. After the ignition system then look at the fuel system. The next time you have to start it cold squirt JUST A LITTLE starting fluid (ether) in the intake. If it starts right up then there may be a problem with the fuel pump, pickup hose, cold start valve, wiring etc. Don't think you are going to fix this by twiddling some adjustment, look for the problem and fix it. Troubles that seem to go away by themselves always come back at the worst time possable! When the motor is running check the frequency valve for buzzing, a dead Lambda makes the car run like sh-t. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Jonas P" <Delorean3543@xxxx> wrote: > About a week ago my 1981, auto tranny, vin 3543, with 23,000 miles > developed a hard start problem when when the engine is cold. It is > taking as long 3 to 5 minuntes to get her going. Its then takes about > 2 minuntes of warming up befor it is ready to run well. I got this > car about a year ago after the last owner let it sit for 10 years,(so > I was told) at that time it had 12,000 miles, this is my daily > driver. After alot of parts and updates it had the same hard start > problem it has now. How ever it seemed to "fix its self" so to speak > after 5 or 6 weeks. Well its back again, a motor head friend of mine > thinks it is a problem with the mixture and that it is running rich. > Any input on how to fix this would be great, Thanks in advance > Jonas > vin 3543