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1980 911SC Cold Start Problem

Fuel System

Vehicle Information: Model: 911 SC; Year: 1980; Body Type: Coupe; Total Mileage: 137000;

Recently my 80 911SC just started to have some problems starting from acold start. When I start the car it will surge idle from 200-900 rpm forabout 20 seconds and just shutoff. If I press the gas pedal to run around1000-1200 rpm for about 1 minute, the car is able to idle on it's own andcontinue to warm-up. From then on the car will run fine but I did noticeit surge idle between 800-900 rpm. Can you direct me what I should lookat first to trouble shoot this problem?

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