DIY OBD1 ECU / ECM Location & Removal

General discussion forum for J30 and M30 owners!
Post Reply
littlewillie
Posts: 179
Joined: Wed Aug 03, 2005 12:07 pm

Post




Modified by littlewillie at 11:35 PM 12/23/2007

Top
User avatar
rclem7
Posts: 20
Joined: Fri Feb 22, 2008 6:06 am
Car: 1995 Infinity J30

Post

you deleted the pictures too soon! ARRRGH! I just bought a 95 J30 and was trying to figure out how to read the codes. I see that it could have either OBDI or OBDII, but I cant find any OBDII connector and I don't see any diagnostic screw on the side of the ECU. HELP! Do I have to remove the ECU to find the screw?
Top
User avatar
gr8scott72
Posts: 1220
Joined: Thu Feb 16, 2006 1:37 pm
Car: 1994 Infiniti J30t

Post

rclem7 wrote: Do I have to remove the ECU to find the screw?
Yes.
Top
User avatar
rclem7
Posts: 20
Joined: Fri Feb 22, 2008 6:06 am
Car: 1995 Infinity J30

Post

it refuses to come out! I removed the two lower screws that hold it in place, but it seems like there is still something holding the top. It looks like it should slide right out. Those picture sure would be helpful right about now!!! HELP!
Top
User avatar
yodawill2000
Posts: 3888
Joined: Thu Mar 24, 2005 4:10 pm
Car: 94 Infiniti J30
Location: Grand Prairie TEXAS

Post

There is a third bolt up on the top back corner if I recall.Been awhile.
Top
User avatar
rclem7
Posts: 20
Joined: Fri Feb 22, 2008 6:06 am
Car: 1995 Infinity J30

Post

Got it! There was not a third screw, but figured out there was a little bracket in the front of it that was keeping it from sliding out. Removed the two screw on bracket and it came right out. Thanks for you help guys, maybe this will help the next nubie that comes along too.
Top
Adam240sx
Posts: 283
Joined: Tue Dec 21, 2004 12:35 pm
Car: 1995 240sx
Location: Illinois.

Post

why did you remove the pictures?
Top
User avatar
yodawill2000
Posts: 3888
Joined: Thu Mar 24, 2005 4:10 pm
Car: 94 Infiniti J30
Location: Grand Prairie TEXAS

Post

Long story but Little Willie had an issue with a few peeps here ,And decided to move on .FYI I still trade emails with him and he's a GREAT guy .And he aint Little either !!!
Top
User avatar
brandonjustice93J30
Posts: 388
Joined: Thu Mar 02, 2006 6:42 am
Car: 1993 Infiniti J30

Post

I think I got into it with him a few times because he didnt like how I aquired my car and I made posts that werent technical and repair related.

But he did know a lot about the car.
Top
User avatar
yodawill2000
Posts: 3888
Joined: Thu Mar 24, 2005 4:10 pm
Car: 94 Infiniti J30
Location: Grand Prairie TEXAS

Post

He knows ALOT about the J.
Top
howy61
Posts: 24
Joined: Wed Jul 15, 2009 1:12 pm
Car: J30 1995

Post

Since I have a separate starting problem I have the ECM/ECU out of my 1995 J30. I will take a picture and post it to help others like me that don't understand the kick panel every one talks about is on the sidewall and not directly under/behind the glove box.

On the 1995 there is 1 bolt below the ECM and 1 nut on the firewall. The ECM then rotates forward and down out of a large retaining clip on top. It is a tight fit.

Since I can not seem to load a pic directly to the forum or have the image link work, here is a direct URL to the pic:

http://picasaweb.google.com/lh/photo/N9 ... directlink

Image
Top
Post Reply

Return to “J30 Forum / M30 Forum”

Search for Nissan stuff on ebay!

Find Your Forum!

 

NICOclub's Nissan forums and Infiniti forums and all affiliated sites are the property of HDS Holdings, Inc.
They are independent publications and are not affiliated with or endorsed by Nissan or Infiniti.

Information Copyright © 2000-2024 by NICOclub, all rights reserved. Material may not be copied or reprinted without written permission.

Privacy Policy