I have a 1993 Mercedes Benz 300SEL with 180,000 miles on it.

When I apply the gas pedal it sputters and chokes out.

Once I get it running it will run smooth.

If I stop at a traffic light it will run for a bit then stall and shut off.

I've changed the fuel filter and had the injectors cleaned.

What else could be the problem?

Any help is appreciated.