Neutral Safety Switch?

[curtisgoodman]

Hey just got around to getting a safety inspection in Ontario for my GTR... i got a small list of repairs one of which is the switch that stops the car from being able to start while the transmission is in gear... they said there's one there but its not working... anyone replaced one of these... any tips? Ill also be getting my steering rack rebuilt at John Stuart Power Brake there was a thread on here about their good service and such ill let you know how that goes. I'm gonna fire back up my build thread shortly with pics and progress on my little to do list... it's been awhile since ive posted in there. Cant wait to get plates its been to long.

Later

Curt

[Dragon Humper]

I dont think there ever was one on any JDM car. Ont might be more anal but, in BC, if it never had one you don't need to put one in.



Jon.

[curtisgoodman]

I'll have to look a bit deeper into it cause they said there's one there that isnt functioning... i said im pretty sure there isnt one and he said yes they're suppose to have one... not sure where he's getting his info from but ill have to investigate further before another confrontation about it... i need time to fix other stuff on the list anyways.

Thanks for the reply

[curtisgoodman]

i just thought of something is there a switch on the clutch for my turbo timer? like when u engage the clutch or release the ebrake in turbo timer mode the engine dies... would that be the switch he's seeing?

[Dragon Humper]

Most likely, my car doesn't have one. He probably just assumes that there should be one because "all cars have them"....lol.


Jon.

[Frankyy]

There's 2 different kind of neutral safety( or neutral position )switch sometimes used to make sure the car can't start while in gear but in our case it's to insure that you are not reving it past 5k rpm while in neutral, buddy of mine was swapping in his rb25 and had those 2 wires to the neutral safety switch crossed and the car would drive perfectly fine just wouldn't rev past 5k

All that thing is is a button inside the tranny, so unless the wires are cut or damaged in any way there is a very low chance that it can fail

[bobbo]

My moms old 94 Altima didn't have a clutch safety switch either. Japanese cars often didn't have them. Tell buddy that's the way the car is.

[NismoS-tune]

There is 2. One is the rear sensor on the tranny (next to the reverse state switch) and the other is the clutch switch. The switches are both there but nEither we're put in service. Best way is to cut into the wires going to the clutch pedal and use that in your ignition.

In my case, because My new engine crank walked I modified my ignition system so the car cannot start in gear nor can it start with the clutch in to protect the thrust as much as possible. Called it the ACWS "anti crank walk start".

Last failure was due to so many starts with the clutch in meaning full pressure on thrust along with slightly bad bearing clearances, ask if you need more info. Basically, when you have your foot in the clutch and about to startup, you have pressure (in my case 1,200 kg clutch pressure) on the trust bearing (which is a non friction/floating metal bearing) with no oil pressure/very little, if any oil film making it a friction bearing therefor wearing faster. One the outer surface of that bearing is gone, the bearing fails very quickly.

You don't hear about this as its usually a slow failure process but Z-tune had made a mistake on my bearing while the tuner rode the clutch on startup making it speed up the failure.

I also use my clutch pedal switch for launch control enable.

[Skym]

i got a small list of repairs one of which is the switch that stops the car from being able to start while the transmission is in gear... they said there's one there but its not working... anyone replaced one of these... any tips?

As far as I know, there's plugs in engine bay next to fuse box. You normally bridge 2x plugs via a wire with auto transmission to manual conversions, so car can be started in gear (search for R32 auto to manual transmission conversion tutorials and it should show the plugs I'm talking about in engine bay, etc). With auto it only allows engine to be started in neutral or park. Inhibitor switch I think they call it.

I think there might be a fuse for the inhibitor ("INHIBIT") in engine bay fuse box and that might be what they replaced.

[curtisgoodman]

There is 2. One is the rear sensor on the tranny (next to the reverse state switch) and the other is the clutch switch. The switches are both there but nEither we're put in service. Best way is to cut into the wires going to the clutch pedal and use that in your ignition.

In my case, because My new engine crank walked I modified my ignition system so the car cannot start in gear nor can it start with the clutch in to protect the thrust as much as possible. Called it the ACWS "anti crank walk start".

So if i were to wire up the clutch switch and trans. switch to the ignition where would i start? Or rather what part of the ignition would they go to and how would i set it up.

Im not sure if that is required to pass safety but they put it on the list they gave me so i gather it has to be done. Its not a bad idea to have one anyways not that anyone other then myself drives it.

[GTS-James]

take your car to get inspected elsewhere, whoever is doing the inspection is being a picky prick.

[Terrh]

a 100% completely OEM GTR has those switches but they aren't used to prevent the car from starting in gear or with the clutch pushed.

[NismoS-tune]

I'd just wire in a relay in the clutch pedal switch to control the ignition circuit (keyswitch side)