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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 08-15-2019, 04:28 AM   #1
Jet1337x
 
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s14 S15 SR20DET into S14 non turbo Help required

Hi guys this is my first post

I have the s15 engine harness and engine and ECU and 6spd trm so it pretty much is a straight swap, but the problem I'm having is the abs on s14 may have different pinouts to s15 abs, I can't find any diagrams on this and I'm not sure how to find what pins do what, the plugs are also the same so if there are any pins different I can just re pin the plugs.

Would appreciate if you guys can help me out!!
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Old 08-15-2019, 10:46 AM   #2
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first off, is your car s14 or s14A? you're in UK, so your car already has a s14 sr20det?
also, do you have a factory service manual for your car?
Wiring diagrams for your car?

I'm assuming you intent to KEEP functioning abs, right?
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Old 08-15-2019, 04:22 PM   #3
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It is an s14, imported not the uk spec s14a

i dont have a factory service manual and yes i want to keep the abs functioning
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Old 08-15-2019, 10:17 PM   #4
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It is an s14, imported not the uk spec s14a

i dont have a factory service manual and yes i want to keep the abs functioning
Ok. So is this a euro spec s14 200sx with an s14 sr20det? Is this a usdm s14 240sx with a ka24de? We need to know what youíre working with here.
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Old 08-16-2019, 01:21 AM   #5
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JDM s14 kouki 1998 with sr20de
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Old 08-17-2019, 05:51 AM   #6
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S14a means s14 after change. ie Kouki(97-98). S14b is before change, Zenki(95-96).

The S15ís ABS system is very different with the VSS being in the Differential.

Although the Body plug next to the ECU is the same physically. The pin out is different from the S14 to the S15. Things like AC and ECCS have different pins IIRC.

I donít know anyone using the S15 Harness and ECU and running ABS. Iím sure you can use the S15 lower(transmission) harness and S15 Differential. Then convert the signal to the dashboard with a Dakota digital. But, I donít know what the differences are between the S15 and S14 solenoid block is. It could be just a repin to the S14 connector or it could be totally different operation.

Looks like Wiring specialties has it figured out and that would be your best bet. You can email them with your current dilemma and make sure this harness will work. But, it looks like it does.


https://www.wiringspecialties.com/s1...ss-s14-silvia/
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Old 08-21-2019, 06:24 AM   #7
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sounds pretty easy. strip out the abs parts of your s15 loom and add in the abs parts from the s14 loom,
swap in the passenger side indicator at the same time.
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Old 08-22-2019, 12:39 PM   #8
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I mean tbf what of I don't run abs what are the negatives?
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Old 08-22-2019, 06:54 PM   #9
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I mean tbf what of I don't run abs what are the negatives?
worse gas mileage
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