Anybody know SR20DET ECU well? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

KoukiMonsta · 07-03-2018, 01:50 PM

I am currently re-wiring my S13, both body and engine harness. As I look over schematics again and again I start to wonder things. Maybe someone here knows about this stuff...

I have a 62 SR20DET ECU for reference.

- what does the ECU do with input from speedometer?
- ECU Pin 24: Malfunction Indicator Lamp. My understanding has always been that these ECU's don't have the ability to output to CEL. Does this pin function?

07-03-2018, 01:50 PM	#1
KoukiMonsta Nissanaholic! Join Date: Mar 2009 Location: NC Posts: 1,969 Trader Rating: (23) Feedback Score: 23 reviews	Anybody know SR20DET ECU well? I am currently re-wiring my S13, both body and engine harness. As I look over schematics again and again I start to wonder things. Maybe someone here knows about this stuff... I have a 62 SR20DET ECU for reference. - what does the ECU do with input from speedometer? - ECU Pin 24: Malfunction Indicator Lamp. My understanding has always been that these ECU's don't have the ability to output to CEL. Does this pin function? __________________ @UpshiftEngineering