What Sr20det is what?

Pull your ECU out... The ECU has a specific amount of wires from each side, lets say, the S14 ECU, upright, has 8/10/10/10 or 8/7/8/10, of course, thats dual layers... Sounds complicated? Well how about this. Look on your ECU, and count the number of wires coming out of each side, in each column, divided by a thick plastic (noticeable). Ok, now we got that, lets look at the chart of the engine years by ECU.

Chassis Year Engine Slots

S15 1999+ SR20DET 8/7/8/10

S14 1996-1998 SR20DET 8/7/8/10

S14 1993-1996 SR20DET 8/10/10/10

S14 1993-1998 SR20DE 8/7/8/10

RPS13 1996-1998 SR20DET 8/7/8/9

RPS13 1996-1998 SR20DE 8/7/8/9

RPS13 1991-1995 SR20DET 8/7/8/9

Ok, now you got the slots determined on your ECU, you can use this slot code to partially determine your engine model. Now its time to use the color code of your motor.

Chassis Year Engine Color

S15 1999+ SR20DET Black

S14 1996-1998 SR20DET Black

S14 1993-1996 SR20DET Black

S14 1993-1998 SR20DE Black

RPS13 1996-1998 SR20DET Black

RPS13 1996-1998 SR20DE Black

RPS13 1991-1995 SR20DET Red

Of course these are not the only determining factors, due to that some engines are equipped with VVTI, which are the newer motors, they will have the slant rear along with the frontal hump.

Chassis Year Engine Rear Slant

S15 1999+ SR20DET Yes

S14 1996-1998 SR20DET Yes

S14 1993-1996 SR20DET Yes/No

S14 1993-1998 SR20DE Yes

RPS13 1996-1998 SR20DET No

RPS13 1996-1998 SR20DE No

RPS13 1991-1995 SR20DET No



Chassis Year Engine Front Hump

S15 1999+ SR20DET Yes

S14 1996-1998 SR20DET Yes

S14 1993-1996 SR20DET Yes

S14 1993-1998 SR20DE Yes

RPS13 1996-1998 SR20DET No

RPS13 1996-1998 SR20DE No

RPS13 1991-1995 SR20DET No



Chassis Year Engine Gear

S15 1999+ SR20DET 6

S14 1996-1998 SR20DET 5

S14 1993-1996 SR20DET 5

S14 1993-1998 SR20DE 5

RPS13 1996-1998 SR20DET 5

RPS13 1996-1998 SR20DE 5

RPS13 1991-1995 SR20DET 5