Hi,
I just got an '88 benz 190e 160k miles (automatic trans) and as soon as I start the car it dies after 1-2 seconds, unless I press the accelerator to up the rpm. I can only drive the car with both feet on the pedals to keep the rpm from going to 0. I have spent last 3 days reading this forum and I tried resoldering OVP (which was in a good shape) and fuel pump relay (also was in a good shape) and that didn't change anything. My next move would be to clean the idle control valve but I have no Idea how to find it and if it will help at all?

I have a hard time keeping my mind off this. What would you guys do next?
Thanks

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1988 mercedes 190e 2.3 AT 160k miles