Harness/ECU combination - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

adictd2b00st · 11-03-2022, 12:06 PM

Hey all,

So I had started going through the wiring on my s14 (I did not personally do the swap on this one) years ago. It ran but was kinda hacked wiring wise, so I started with ripping out the old and brittle harness. I?d be lying if I said I didn?t forget all the details since then. It?s an S13 red top in an S14 zenki chassis.

Long story short, I want to make sure I get the right ECU for this car. From what I can tell the wiring at the ECU connector on the harness I put in (a second hand WS harness) matches a 62/63 pinout.

I know the wire colors won?t necessarily always match but pin location/function would be best indicator. I made a quick spreadsheet (I tried to snip/attach as a picture but not having any luck) does what I?m seeing seem right? I have empty locations for pins 5, 10/11/12, 24, 26, 28, 33, 42, 44, 45, 102, 105, 111, 114/115.

If you have a good way for me to confirm by, let me know and I?m up for checking it. Been far too long really want to get this thing running again!

OMFGeofffff · 11-04-2022, 05:15 AM

https://www.wiringspecialties.com/ecu-pinouts/

Check for continuity on ignition wires from ecu connector to ignitor connector. I believe those are the main differences between 64-pin ecu's.

11-03-2022, 12:06 PM	#1
adictd2b00st Zilvia Addict Join Date: May 2003 Location: OH Age: 43 Posts: 695 Trader Rating: (4) Feedback Score: 4 reviews	Harness/ECU combination Hey all, So I had started going through the wiring on my s14 (I did not personally do the swap on this one) years ago. It ran but was kinda hacked wiring wise, so I started with ripping out the old and brittle harness. I?d be lying if I said I didn?t forget all the details since then. It?s an S13 red top in an S14 zenki chassis. Long story short, I want to make sure I get the right ECU for this car. From what I can tell the wiring at the ECU connector on the harness I put in (a second hand WS harness) matches a 62/63 pinout. I know the wire colors won?t necessarily always match but pin location/function would be best indicator. I made a quick spreadsheet (I tried to snip/attach as a picture but not having any luck) does what I?m seeing seem right? I have empty locations for pins 5, 10/11/12, 24, 26, 28, 33, 42, 44, 45, 102, 105, 111, 114/115. If you have a good way for me to confirm by, let me know and I?m up for checking it. Been far too long really want to get this thing running again!

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11-04-2022, 05:15 AM	#2
OMFGeofffff Zilvia Member Join Date: Jan 2010 Location: Minneapolis MN Age: 35 Posts: 159 Trader Rating: (3) Feedback Score: 3 reviews	https://www.wiringspecialties.com/ecu-pinouts/ Check for continuity on ignition wires from ecu connector to ignitor connector. I believe those are the main differences between 64-pin ecu's.