ECU s13 blacktop missing

[9Dsx_Drvr]

I just got my s13 blacktop delivered. But, I am missing my ECU.

Can I modify the stock ka24 ecu? If not which ecu do I need? What are my alternatives? Where can I get a used one?

[Nismo_Freak]

You need an E5 or 62 ECU.

[9Dsx_Drvr]

Ok,

You need an E5 or 62 ECU.

So what cars did they come in, or can I substitute?Is there an aftermarket substitution?

Tony

[Dori Dori]

Do you know what year blacktop you got? Do you have a wiring harness?

[9Dsx_Drvr]

How can you tell what year?

I have the full harness. It has the plug for it. It looks like it fell off in shipment. The company said it was on there when they shipped it.

[Dori Dori]

You might have to check the pinout of your wire harness if your importer can't tell you. Pretty crappy that they're not sending you a new ecu. I'd demand one.

Anway, there are two different harnesses for blacktop engines...one uses the more common pinout for #62 and E5 type ecus while the other was pinned for J4 (like mine). If you get the wrong ecu, you'll have to repin your harness (not a big deal, just letting you know). Since you have a blacktop, I'd at least get an E5 since that is what's meant for your engine's sensors.

[9Dsx_Drvr]

So,

How do I know if mine uses the J4 or the e5/62??

Tony

[Dori Dori]

Either trace the wires on your harness using a pinout or ask your importer what ecu went with it or what year they yanked it from.