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HOW TO: 1jz sc300 neutral safe switch removal with pics

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Old 07-21-08, 10:10 AM
  #16  
jefferino
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^^Well that made it crank over real well now I have to figure out why I have no power to my fuel pump, which is a separate problem all in itself!
Old 07-21-08, 11:32 AM
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Biggu
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Originally Posted by jefferino
**Got a new and updated version that is taking part of this and part from another person who helped me out with mine.(OneJay)**

Okay so all you need to do is get a thick (I used 14ga) wire, put one of those slide on ends to the wire (so it will slide on over a flat metal lead like the one seen above on the trans connector).

Take off your remote lead on the starter (NOT the one with the nut)

Slide on your new wire/end

Take this wire and run it as described above into the cabin, under the dash

Connect it to the thick black/white wire

Voila you can now start your car in any position using the key.

Thanks for the help above and to OneJay for his help because between the two of you I am now able to start my car with the key and without the car in neutral (due to my AT ECU)

***No need to mess with the plug underneath on the trans, no need to mess with the relay, just a straightforward line from the starter to the starter wire inside the cabin***
doing this is basically the same as what i have done except im running through the relay and not hardwired to the starter. the wire that was removed and basically tapped into with this step is the same wire that goes to the starter relay.

either way its done is both a good work around to that pesky NSS.

im glad you all got your car to turn over.
Old 07-21-08, 01:22 PM
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jefferino
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Well my car is ALIVE!!! Big thanks to Biggu, OneJay and SlowSC3 for all the help! Slow SC3 is my hero for helping me drop it in so quickly, you other guys are the ones who helped me so I can actually crank over the car!

The mod I did works out just fine and starts right up, once you remember/find that one of your body plugs was loose/not connected so you weren't getting any fuel
Old 08-18-08, 06:34 PM
  #19  
lemmiewink
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this may seem like a stupid question, but when cutting the thick black white wire... Which side do I splice it on? Connector side or wire side?

I tried this and it didn't work for me. car still won't turn over.
Old 08-18-08, 08:10 PM
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1985zcar
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Thanks in advance to both you guys, because I'm doing my 1J swap soon :P
Old 08-19-08, 10:17 PM
  #21  
farkas
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Originally Posted by lemmiewink
this may seem like a stupid question, but when cutting the thick black white wire... Which side do I splice it on? Connector side or wire side?

I tried this and it didn't work for me. car still won't turn over.
You do not cut the wire.....Just splice into the black/white wire. Leave it connected and add you new wire to it.
Old 02-28-09, 01:37 PM
  #22  
The_Marine
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Thank you! This fixed my problem. Finally heard her run!!!
Old 02-28-09, 02:15 PM
  #23  
2jzlex
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Good writeup. Added this to my FAQ section.
Old 07-23-09, 04:44 PM
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GSXRMack
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Worked for me 93 SC. Second gen motor. Not vvti.

Last edited by GSXRMack; 07-23-09 at 04:51 PM.
Old 07-27-09, 12:27 AM
  #25  
Dr.Fate
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Hey will this work on a 95 sc300? odb1?
Old 12-23-09, 08:57 PM
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evileagle
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I tried this on my original 95 5spd swapped with a 94 auto soarer utilizing my stock w58. This did NOT work for me because yes it does get the starter working but it also caused the car to sputter and not go over 3k rpm or so. I called Dr. Tweak and he said that this is a big no no and told me the correct way to do it. Once I did it per his instructions, BAM no more hesitation or sputtering.

Just giving you guys my experience.
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Old 12-25-09, 09:00 PM
  #27  
convoy
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i'm guessing that if i have a manual 1jz ecu i won't be needing to do this?
Old 12-26-09, 12:02 AM
  #28  
GSXRMack
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most likely not
Old 02-08-10, 04:24 PM
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MongooseGA
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Excellent info. I don't know why I didn't find this thread before.

Will this allow me to retain the cruise control on my OBD1 SC400 with W58 swap?
Old 01-15-11, 10:24 PM
  #30  
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Originally Posted by evileagle
I tried this on my original 95 5spd swapped with a 94 auto soarer utilizing my stock w58. This did NOT work for me because yes it does get the starter working but it also caused the car to sputter and not go over 3k rpm or so. I called Dr. Tweak and he said that this is a big no no and told me the correct way to do it. Once I did it per his instructions, BAM no more hesitation or sputtering.

Just giving you guys my experience.
I know this is an old thread but what was the right way that Dr Tweak said about doing?

So this is only for swaps with an Auto ECU in a 5spd?


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