1987 300D A Couple of Odd Issues

[iamtheosprey]

First of all, occasionally the car will die if I suddenly let off the accelerator.

In a parking lot or coming to a red light in town when I let off the accelerator the tach will drop all the way to zero occasionally actually dying.

This usually happens when the engine is pretty warm, like over 100C.

Second, when I first start the car I have no warning lights on however the first time I use the brakes I get a pulsation like ABS is coming on and then the Antilock light comes on and stays on until I kill and restart the car.

The pulsation only happens the first time I apply the brakes.

Any ideas?