[shortdahri]

Anyone know what the codes on an Integra GSR ECU stand for? How can you tell if its for an automatic or 5-speed? How can you tell if its VTEC or not? Thanks for the help.

FOR EXAMPLE - heres a 98 GSR ECU

heres a 97 GSR ECU

 

[Hybrid Fever]

easy

Easily, all U.S. spec GSR's are 5-speed. If it's JDM, im not sure.

 

[shortdahri]

So how do you know if its a GSR ECU as opposed to a LS ECU?

 

[Hybrid Fever]

oh

I didn't know that you wanted to know the difference between an LS ecu and GSR ecu. You said a 97 GSR ecu and a 98 GSR ecu. Honestly I'm not sure. I'm not sure but the ecu number might be on there. I think the gsr is like P28 or something.

 

[Mugen1182]

I asked that same question a while back on a diffrent board and i got the following answer:

Here are the ecu numbers

PG6 : 88-89 Integra (all makes)
PM5 : 88-91 Civic/CRX DX
PM6 : 88-91 Civic/CRX SOHC Si
PM7 : 89-91 DOHC ZC (JDM 'EF' ECU)
PM8 : 88-91 CRX HF
PR2 : 89-91 ZC (Euro)
PR3 : 89-91 JDM B16A EF8/9
PR3 -J00 or J51 : 92 JDM Integra B16A EF8/9
PW0 : 89-91 JDM B16A EF8/9 DA6-XSi
PR4 : 90-91 Integra LS/GS
PS9 : 88-91 4 door Civic EX Auto
P05 : 92-95 OBD-1 Civic CX
P06 : 92-95 OBD-1 Civic DX
P07 : 92-95 OBD-1 Civic VX
P08 : 92-95 OBD-1 Civic D15 JDM
P0A : 94-95 OBD-1 Accord EX
P13 : 93-95 OBD-1 Prelude Vtec
P14 : 93-95 OBD-1 Prelude Si (non Vtec)
P27 : 92-95 OBD-1 EG JDM Civic 1600 sohc
P28 : 92-95 OBD-1 Civic Si/Ex
P30 : 92-95 OBD-1 DelSol DOHC Vtec Si/EG SiR
P54-G31 : 1997 Honda Accord 1.8 LS
P61 : 92-93 OBD-1 Integra GSR
P72 : 94-95 OBD-1 Integra GSR
P72 : 96-00 OBD-2 Integra GSR
P73 : 96-00 OBD-2 Integra Type-R (JDM & USDM)
P74/75: 92-95 OBD-1 Integra LS/GS
P75 : 96-00 OBD-2 Integra LS/GS
P2N : 96+ OBD-2 Civic HX Coupe
P2P : 96+ OBD-2 Civic EX Coupe
P2E : 96+ OBD-2 Civic DX Coupe
P2M : 96+ OBD-2 NZ Civic SOHC VTEC
P2T : 99+ OBD-? Civic Si Coupe
P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU)
PBA : 97+ US Acura 1.6EL
PCT : 98+ JDM ITR / CTR
PCX : 99+ OBD-? S2000


Here is a breakdown of the VTEC Integra ECU's, notice how the AT ad MT have different ending numbers, I assume that the 11 or 61 means AT, and the 00/01/02/03 means MT. I do not know if that is the same on the LS though.


1992 Acura Integra 4 cyl 1.7L VTEC DOHC FI MT FED 37820P61A00

1992 Acura Integra 4 cyl 1.7L VTEC DOHC FI MT CALIF 37820P61L00

1992 Acura Integra 4 cyl 1.7L VTEC DOHC FI AT FED 37820R4L11

1992 Acura Integra 4 cyl 1.7L VTEC DOHC FI AT CALIF 37820R4L61

1993 Acura Integra 4 cyl 1.7L VTEC DOHC FI MT FED
37820P61A00

1993 Acura Integra 4 cyl 1.7L VTEC DOHC FI MT CALIF 37820P61L00

1993 Acura Integra 4 cyl 1.7L VTEC DOHC FI AT FED 37820R4L11

1993 Acura Integra 4 cyl 1.7L VTEC DOHC FI AT CALIF 37820R4L61

1994 Acura Integra 4 cyl 1.8L VTEC DOHC FI MT (GS-R) 37820P72A01

1995 Acura Integra 4 cyl 1.8L VTEC DOHC FI MT (GS-R) 37820P72A01

1996 Acura Integra 4 cyl 1.8L VTEC DOHC FI 37820P72A02

1997 Acura Integra 4 cyl 1.8L VTEC DOHC FI 37820P72A03

 

[shortdahri]

Is there anywhere online where i can purchase a brand new ECU in the box? I don't want to buy an OBD II GSR 5-Speed ECU from someone on the net finding out that it doesn't work or its for a different setup (i.e. - auto or non-vtec). Anyone have any ideas? Thanks.

By the way, thanks for the useful info Mugen1182!

 

[Hybrid Fever]

Yea it's P72 for the gsr, not P28.

 

[Mugen1182]

I got my ecu from this one guy online, he sent me the ecu first so i can check it out and see if it works then i send him the $. He was pretty cool about it. Shortdahri, ask for a picture or something of the code when you go to buy your ecu to make sure you get the right one.

 

[VTECsqznN2O]

im using an ls ecu with my b16...I have an autometer rpm module to activate the vtec. Ls ecus are cheaper. you will have to get the revlimiter moved, but thats no biggie. the rpm module switce is like 70 bucks i think..everything together may be cheaper then the gsr ecu and harness adapter