Asking to be spoon fed here I am having an issue, I think, with my throttle valve switch. According to my X11 adjustments for lambda, my switch is likely faulty.

So I am wondering what other sensors and stuff I should test on the engine. I am very used to a Ford 4.6 with a cam and crank sensor, IAT, IAC and a few temp sensors, etc. But on the 560 SEL I do not have a laundry list of sensors to replace and test as part of maintenance. Such as if there even is a cam sensor.

Any help would be great, I can look-up the test procedures myself most likely. Just need a starting point on what is all there.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car

http://www.w124performance.com/service/W126/w126CD1/program/Engine/103/07-152.pdf

That is for the M103, but should be the same for the V8. Search for CIS-E troubleshooting / diagnosis for a boat load of more info.

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http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...

Thanks John, that will help. I had found a quick right up, but that one is better. And its a PDF, so I can save it for the shop computer to use.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car