P11 Infiniti G20

UNISA JECS · Post by **UNISA JECS** » Sun May 17, 2009 5:17 am

Hey Matt does Nistune support the 99 Infiniti G20 P11?

Matt · Post by **Matt** » Sun May 17, 2009 5:00 pm

No it doesnt... only the 1995 G20 (P10) Infiniti

UNISA JECS · Post by **UNISA JECS** » Mon May 18, 2009 6:58 am

Matt wrote:No it doesnt... only the 1995 G20 (P10) Infiniti

I might buy a 01 G20 do you know if its possible to run the 95 ECU, isn;t 95 OBDII?

UNISA JECS · Post by **UNISA JECS** » Tue May 19, 2009 4:29 pm

Ok I got myself a 99 G20 and I want my car to be able to use Nistune, can I use another ECU from another year G20 or B14 SE-R?

Matt · Post by **Matt** » Thu May 21, 2009 12:37 am

true OBD-II is 1996 only from what I know. If you have a part number I can look it up and check

G20 P10 SR20 I've got 23710-02J12 (1995 AT) working but there is a 23710-0J610 (1996 OD-II AT) which needs the extra OBD-II ROM on the daughterboard for this to work

Thats where I need to extend the existing Type 4 board to use that

UNISA JECS · Post by **UNISA JECS** » Thu May 21, 2009 8:22 am

Matt wrote:true OBD-II is 1996 only from what I know. If you have a part number I can look it up and check

G20 P10 SR20 I've got 23710-02J12 (1995 AT) working but there is a 23710-0J610 (1996 OD-II AT) which needs the extra OBD-II ROM on the daughterboard for this to work

Thats where I need to extend the existing Type 4 board to use that

My P11 G20 is a 1999 SR20DE A/T, it has both the CONSULT style OBDI port and the CONSULT style OBDII port but the car is OBDII.

I have had some success connecting to Nistune with the following address file and using the OBDI style consult port.

B14 SR20DE 1996+

However alot of teh tables are missing compared to when I had my S13 KA24DE, I guess thats what your refferening to when you mentioned extending the exsisting type 4 board.

UNISA JECS · Post by **UNISA JECS** » Thu May 21, 2009 8:23 am

I haven't yet pulled my ECU but I can do that soon, but I also plan on converting the car to speed soon as possible.

Matt · Post by **Matt** » Thu May 21, 2009 10:24 am

the maps probably need more investigation for the later ones, since we cant tune them yet not too much time is spent on them

the extension of Type 4 is actually for an OBD-II ECU program which is used by a separate processor on the board. Right now the NVRAM only holds 64KB so its either using EPROM or other FLASH type (cheaper memory) to hold the OBD-II stuff on that board

However the OBD-II program needs to be loaded onto the board separately

UNISA JECS · Post by **UNISA JECS** » Thu May 21, 2009 12:05 pm

Im wondering if I can make an OBDII to OBDI harness adapter and run a B13 SR20DE ECU since that has support already?

Matt · Post by **Matt** » Thu May 21, 2009 8:10 pm

i would use the B14 SR20DE ECU since we support that. i just dont have it listed under Type 4 on the equipment page yet but its definately running

extending the address files shouldnt be too much of a problem for these

UNISA JECS · Post by **UNISA JECS** » Fri May 22, 2009 12:51 am

Matt wrote:i would use the B14 SR20DE ECU since we support that. i just dont have it listed under Type 4 on the equipment page yet but its definately running

extending the address files shouldnt be too much of a problem for these

Ok that would be less of a hassle, can you tell me what year or part number ECU I should get?

Matt · Post by **Matt** » Fri May 22, 2009 11:18 am

from the JWT list. I think any of these should work. I've tested B14/P10 SR20DE and got them running with Type 4

B14 SR20DE 200SX 95 USDM 0M760 N M U OBD2 " JA18-B88 B14"
B14 SR20DE 200SX 95 USDM 0M761 N M U OBD2 " JA18-B88 B48"
B14 SR20DE 200SX 95 USDM MEXICO N M M OBD2 " JA18-D27 BA6"
B14 SR20DE 200SX 95 USDM 0M765
P10 SR20DE G20 94 USDM 0J210 N A U OBD2 A18-B70 C13
P10 SR20DE G20 94 USDM 0J211 N A U OBD2 A18-B70 C15
P10 SR20DE G20 94 USDM 0J200 N M U OBD2 A18-B69 C12
P10 SR20DE G20 95 USDM 0J212 N A U OBD2 ??
P10 SR20DE G20 95 USDM 0J213 N A U OBD2 ??
P10 SR20DE G20 95 USDM 0J201 N M U OBD2 A18-B69 C14
P10 SR20DE G20 95 USDM 0J202 N M U OBD2 ??
P10 SR20DE G20 95 USDM 0J203 N M U OBD2 A18-E05 C52

UNISA JECS · Post by **UNISA JECS** » Fri Jun 05, 2009 4:16 am

Ok so the P10 OBDII ECU should work on my 99 P11 SR20DE granted it wont run the extra bullshit the 99 engine has?

Heres a list from Nissan FAST USA of the OBDII ECU of the P10 SR20DE

Matt · Post by **Matt** » Fri Jun 05, 2009 10:56 am

you can only try first with a stock ECU to begin I guess

UNISA JECS · Post by **UNISA JECS** » Sun Jun 07, 2009 8:23 am

Ok Matt I sourced the following ECU from a 07/95 P10 G20 M/T

A18-F15 C54 OBD2 P10-SR20DE 23710-0J600

Imma try fitting this to my 99 G20t A/T and see what happends, I plam to do a 5 speed swap thats why I got a M/T ECU.