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Not pin 14, but maybe 30 200 1992

uid 60851's pic
posted by  Grey245 on  Mon Oct 19 12:13 CST 2020
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Yes, I agree the A/C thing is looking more and more like a red herring to me too.
However, since grounding pin 14 I have yet to see the high idle state reoccur. But more time is needed to confirm this is not a coincidence.

I had to delve a little deeper into the LH2.4 design because of your remarks regarding pin 30.
Looking at several LH2.4 diagrams, there are some that draw a test socket, some draw a "data link connector" and some go straight to the starter motor with no socket in between. The latter seems to be the case with my 1991 245.

The way I understand your description is that if pin 30 is left floating, the starter motor won't crank the engine, right?
TP31361/1 says that in Drive resistance from pin 30 to ground should be infinite and 0 Ohms in Neutral.
So wouldn't pin 30 serve a double function? One that prevents starting the engine if the auto in not in N and one that elevates the idle of an already running engine if it is put in D (or R)?

But to be short about this, this pin I had already eliminated, it measured about 0 ohms to ground.






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