S15 ECU identification

[21FOX21]

Im trying to order an S15 engine and the place doesnt have any idea what ECU goes with the engine.

He told me he has 2 and they both plug in

2371M 5J003 Big AA on it.A18-G60

and

23710 80500A18-F01-G08

Anybody have a clue which one it is if any?

[SpeedRacer1]

2371M-5J003 isnt an ECU part number. Perhaps he meant 2371M-53J00, this is the part number for a 1990-1992 P10 SR20DE MT. That ecu is remanufactured and works on SR20DE's found in Japanese version Infiniti G20's, called Primera's.

The second ECU has the wrong part number too. That one is probably supposed to be 23710-80F00. This is the ECU for a 1996-1998 S14 SR20DET MT.

The ECU you need is going to be a 23710-91F**.

If it says 2371M-91F** it is just remanufactured.

Here are the S15 ECU part numbers.