Neutral posistion switch was Problem idling while coasting

[Peter Jackson]

Jon Davis wrote:

> Nope. Go out to your car and try putting the car in & out of gear while
> sitting in the parking lot. Your idle does not jump to 1500 when you stick
> it in gear.

Wayne Cox wrote:

> Correct.  In fact. I've never been able to find any indication of
> what that damn neutral switch does

Have you tried it while your car is moving?

If I am driving and put the clutch in but leave it in gear, my rpms drop
to 1300.
If I then leave the clutch in and put it in neutral, it drops to base
idle.
While the car is moving.

I was under the impression that Donovan was also moving as the subject
said "Problem idling while coasting" --coasting as in moving

I'm sorry my reply wasn't clear on this aspect.

Since the only thing to change is the gear position, the neutral
position switch should be involved.
Since it doesn't work in the parking lot, so should the speed sensor.
I don't know for sure the reason.
It just makes sense that the engine would be kept on the boil while the
car is moving. If you're in gear, you are more likely to accelerate.
The brake booster pressure may be right , but why would it only be
boosted when in gear. Don't use brakes accelerating. But if I'm moving
and out of gear, I would be more likely to brake. The rpm and therefore,
the brake booster is not bumped when the car is moving and in neutral.
Go figure, I don't know the reason, but I do know the neutral position
switch does something in the situations described above.

Does anybody out there know the engineering reason behind the neutral
position switch and it's actions?

Peter J