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Neutral Position Switch... What does it do?


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9 replies to this topic

#1 Stormy

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Posted 13 May 2005 - 10:07 AM

Hi,
I've been having some issues with low idle on my 02 legacy gt. I noticed that a plug located under the air box was wrapped with electrical tape. I think it goes to this switch. Is there a chance that this might be causing my problems?

Thanks,
Stormy

#2 Stormy

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Posted 13 May 2005 - 10:48 AM

The connector is Grey with 2 wires coming from it. One is brown with a yellow stripe and the other is green with a black stripe.

#3 Tiny Clark

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Posted 13 May 2005 - 01:39 PM

The neutral switch usually allows the car to be started in only Park or Neutral.

#4 Stormy

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Posted 13 May 2005 - 01:51 PM

My 02 is a 5 speed... Do I even have one?

#5 felipe01forester

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Posted 13 May 2005 - 02:29 PM

That's probably the kill switch from the clutch to the starter. In all modern sticks, there is a safety feature that disables the starter UNLESS the clutch is depressed, so your car won't run away from you if you happen to leave it in gear.

#6 Setright

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Posted 14 May 2005 - 01:55 AM

When is a car "modern"? :)

#7 Tiny Clark

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Posted 14 May 2005 - 02:34 PM

When ya can't figure out what the problem is...

#8 Olnick

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Posted 14 May 2005 - 03:09 PM

Excellent answer, Tiny!

#9 Stormy

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Posted 17 May 2005 - 08:42 AM

So I did some more "testing" on my idle problem.

If I'm driving at about 45mph, put the clutch in and leave it in gear and come to a stop, the RPM's go down to 650~ and stay there. If I put the shifter in neutral when stopped, the RPM's will drop down to 350~.

Would faulty neutral position switch have anything at all to do with this???

#10 Stormy

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Posted 17 May 2005 - 09:10 AM

"PN/PS (Park Neutral Position Switch)- This switch senses if the transmission is in park or neutral. The PCM adjusts the engines idle based on this input. The engine WILL run without this input."

I found this here http://www.off-road.com/jeep/tech/4lswap/

Anyone know if this applies to any vehicle with a PN/PS?




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