2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

s4 na to TII conversion

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Old Feb 8, 2009 | 04:29 PM
  #1  
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s4 na to TII conversion

ok so i looked around and all i could find is people saying that i need to
1. keep the s4 na wire harness and get the aspec TII ecu
2. Get the aspec ecu and TII wire harness

Now my question is the swap i would be getting is the s4 jspec comes with the jspec ecu and uncut harness. The jspec wire harness will be 3 feet short but if i use the same gauge wire and insulate any ignition related wires can i just use the jspec ecu?

also i picked the car up for $200 with a clean body, it comes with no motor, tranny, wire harness
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Old Feb 8, 2009 | 06:23 PM
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The n318ecu gives some people issues. Just find an n332 or n333, not particurlary expensive. I swapped a t2 engine into my s4 with no issues at all using the na harness. HAILERS QUOTE "it makes no sense to use the t2harness when swapping in the turbo engine. Search for HAILERS and harness....get some coffee and read. Fairly straight foreward and less work only a tps wire extension using na harness as opposed to ******* with alternator wiring with the t2 harness. See if either japan2la or atkins will give you some money off minus the harness.........those are the ONLY 2 distributors you will consider buying from.

john ny
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Old Feb 9, 2009 | 12:36 PM
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The things is though i do not have the na harness,
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Old Feb 9, 2009 | 12:54 PM
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87 t-66's Avatar
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buy a used one for <$50
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Old Feb 9, 2009 | 12:59 PM
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S4 NA wiring harness + N332/333. Throw away the cut jspec harness. Done.
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Old Feb 9, 2009 | 01:20 PM
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well after doing some more reasearching i have decided to just go ahead and buy the s4 na wire harness and i will get the N332/333. Kinda down about it but i got my skunk2 coilovers for my GSR in the mail today so now im happy
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Old Feb 9, 2009 | 08:09 PM
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Sell the honda and put the money in the 7!
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Old Feb 9, 2009 | 09:35 PM
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Originally Posted by maczpayne
sell the honda and put the money in the 7!
+1
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Old Feb 10, 2009 | 05:29 PM
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Unhappy I can't find it!

Originally Posted by blackhb
well after doing some more reasearching i have decided to just go ahead and buy the s4 na wire harness and i will get the N332/333. Kinda down about it but i got my skunk2 coilovers for my GSR in the mail today so now im happy
I've spent three hours looking for the post about what you have to do to your N/A harness to make it work in the TII...
Anyone have a link or just some pictures? Any help would be much appreciated.

Thanks,
Scott
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Old Feb 10, 2009 | 07:57 PM
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importtuner137:
https://www.rx7club.com/showthread.p...ght=turbo+swap

1. Cut the wire at pin 1R (knock sensor on turbo ecu, but p/s switch on NAs)

2. Extend the TPS wires

3. Extend the BAC wires

I found all of this info on here before I converted my car. There are a bunch of threads.
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Old Feb 10, 2009 | 08:45 PM
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Originally Posted by RotaryRocket88
importtuner137:
https://www.rx7club.com/showthread.p...ght=turbo+swap

1. Cut the wire at pin 1R (knock sensor on turbo ecu, but p/s switch on NAs)

2. Extend the TPS wires

3. Extend the BAC wires

I found all of this info on here before I converted my car. There are a bunch of threads.
Thank you sir.
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Old Feb 10, 2009 | 11:30 PM
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Originally Posted by connors14
+1
Originally Posted by MaczPayne
Sell the honda and put the money in the 7!
.
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Old Feb 25, 2009 | 02:18 PM
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Originally Posted by MaczPayne
Sell the honda and put the money in the 7!
Dont do that cuz then you'll be stuck with no ride. My Seven is down & I know rock a Max with flowers on the seat covers lmfaoo



Trini
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