Bypassing the Neutral Start Switch???

[AF1JZ]

I did a lot of searching and couldn't find a direct answer. Here's my situation...I put a soarer 1jz with the A/T ECU in my 1991 turbo with the R154. Everything is wired right (odom helped me and he did the same wires and his is running).


The car is getting power and everything. But, when i turn the key I get nothing. How exactly do I bypass the neutral start switch (jumper which wire to which wire). Please help me. It's killing me. Thanks guys.

 

[Ken]

look at the clutch pedal bracket, and you will see a cylinder with a little button that the top of the clutch pedal contacts whenever it is pressed down.

that is the clutch start switch. just jump the two wires on the harness side to bypass.

 

[AF1JZ]

I shouldn't need to do that because I'm pressing in the clutch when I turn the key. My problem is the ecu came from an AUTO and now it in a manual car.

 

[IJ.]

There is another plug down by the starter you need to jump the heavy gauge wires.

 

[Ken]

oh, ok. you will see a big, round 3-wire plug near the starter that has some thick gauge wires.

jump the blue and the white wire I believe.

 

[AF1JZ]

Will that just make it turn over without the key? Or is that what will bypass it so I can crank it from inside the car?

 

[IJ.]

It'll crank with the key.

 

[Ken]

that is the plug that goes to the NSW of the automatic trans. jumping the two wires simply closes the NSW circuit, allowing you to start the car. with the key.

you asked how to bypass it, there you go.

 

[AF1JZ]

Thank you very much ITR and IJ. I will give it a try when I get up tomorrow and hopefully report good news on my Build Thread.

 

[IJ.]

The Clutch switch in a normally open switch so if you want to lose it just unplug it

 

[AF1JZ]

So, you could crank it without pushing in the clutch? If so, knowing me, I'd have to buy a new bumper if ya know what I mean.:biglaugh:

 

[IJ.]

Downside of that switch is if you have an uprated clutch you're destroying the Crank Thrust bearings

 

[AF1JZ]

If left in gear while trying to start it. A lil off topic, but I could unplug the switch if I were ever to put in a remote start?

 

[IJ.]

Push the Clutch in Crank motor = trashed Thrust bearings and Crankwalk
(with an aftermarket clutch)

Dunno about the remote it all depends on what safeties it needs, the Tremec I just pulled out has a proper Neutral Switch in it for the USA market.
(none of our cars had the clutch switch for anything other than Cruise Control cancel)

 

[Brewster]

Push the Clutch in Crank motor = trashed Thrust bearings and Crankwalk
(with an aftermarket clutch)

Dunno about the remote it all depends on what safeties it needs, the Tremec I just pulled out has a proper Neutral Switch in it for the USA market.
(none of our cars had the clutch switch for anything other than Cruise Control cancel)

Yeah they have to make it idiot proof for us, go figure.

 

[AF1JZ]

oh, ok. you will see a big, round 3-wire plug near the starter that has some thick gauge wires.

jump the blue and the white wire I believe.

that is the plug that goes to the NSW of the automatic trans. jumping the two wires simply closes the NSW circuit, allowing you to start the car. with the key.

I can't seem to find it. I am using the R154, not the auto. Is it plugged into anything or just sitting there loose since I'm not using an Auto?

 

[Ken]

is your engine harness an auto or manual?

 

[AF1JZ]

Well, I got that problem fixed. It was a black and black/white wire that I had to connect. So, the car cranks now. But, my fuel pump isn't getting any power. Now I'm stuck trying to get power to that.

 

[supradavenz]

Are those the wires from the top of this plug Here.

 

[tlo86]

whoa what a bump