Hi i have a rough idle and sputtering issue with my 190e. I mentioned about the sputtering issue in another post in detail. ( http://www.peachparts.com/shopforum/tech-help/358872-190e-2-6-sputters-when-hard-acceleration-1990-a.html )
So one fellow from the forum reminded me the crank position sensor might be the problem. Since i have also a inconsistent idle and takes 2 trys to start the car i thought it might be the problem. My s500 did the no start because of cps few months ago. But my problem is i couldnt spot the cps at the back of the engine. I checked some cables going back side of the engine but because of intake i couldnt see it well. Isthere any way to reach it easilyor do i have to remove the intake? And if someone can point out where exactly is the cps i will be so happy. Thank you very much.

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On my m104 it is above the starter.I ran over some limbs,and it unplugged it.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Follow one off the wires that goes from the ezl to the back. It's located behind the oil filter housing.
You might have a stuck intake valve though. I did. Test the cps by unplugging it and starting the car

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1990 190E 3.0L