I have a 78 911SC with 70000 original miles. It has never given me a days problem for years until yesterday. After driving 10 miles, I started her up to go home. She started, went into the cold-start cycle with a high idle, but when the cold-start cycle ended and she returned to normal idle she died. Would not start again. There is gas and abple battery power. Got towed home. :(
I tried to start her at home and she starts running, and immediateley dies like there is no fuel. In the morning she started perfectly but died again after cold-start idle cycle.
Any ideas? Must this not be the warm idle regulator? Warm control pressure? Cold start valve? Help?
Martin Folb