|
|
|
|
Thread Tools | Display Modes |
06-30-2010, 05:56 AM | #1 |
Scooby Newbie
Member#: 237228
Join Date: Feb 2010
Chapter/Region:
MWSOC
Location: Kalamazoo, MI
|
02 Legacy Outback Diagnostics port issue
I have a 02 legacy outback, put in a jdm dohc ej25 and runs but only on 2 cylinders at idle, threw CEL instantly and i went to hook up my scan tool and shows the little pic of car in corner like it should so its gettin power from car but wont connect. Keeps trying and errors out saying unable establish connection. No matter what scan tool i try
EDITED.....runs good, see below
* Registered users of the site do not see these ads.
Last edited by 2ez4me; 07-12-2010 at 06:52 PM. |
06-30-2010, 11:50 AM | #2 |
Scooby Guru
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:2001 LL Bean Outback Winestone |
It sounds like the scanners you are trying to use don't work with the ISO-9141 protocol that Subarus use. Have you checked that out? If they do then it sounds like a data line connection problem. Check pins 7 and 15 out and make sure they are making good connection back to the ECU. Here is a link for some reference on OBD-2.
http://www.obdii.com/connector.html |
06-30-2010, 05:23 PM | #3 |
Scooby Newbie
Member#: 237228
Join Date: Feb 2010
Chapter/Region:
MWSOC
Location: Kalamazoo, MI
|
all scanners i used worked with mine and several others subarus, including 02 wrx's so they should be fine. Thanks for the info on connector pins. Ill check them tonight when i go out
|
06-30-2010, 10:57 PM | #4 |
Scooby Guru
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:2001 LL Bean Outback Winestone |
So the scanners have been proven then. If you can't find a wiring problem on the data or ground leads then the ECU would be suspect.
|
07-09-2010, 09:47 PM | #5 |
Scooby Newbie
Member#: 237228
Join Date: Feb 2010
Chapter/Region:
MWSOC
Location: Kalamazoo, MI
|
Could the ECU be bad even though it runs and drives good? for the most part.
The previous owner had the JDM avcs heads wiring harness hooked up for the first few days and ran rough and wasnt the smoothest. Could that have messed with the ecu? Its all back to stock ecu and harness's It has a loose connection for the power but i cant get it to connect at all no matter what i do. I undid the wiring harness all the way up to under the steering wheel area, No breaks or anything. So im sure it has a loose pin, But i can get it to stablize and i cant get it to connect no matter what. I hear that the ecu could be bad but could it still run good? I have a CEL but have no idea what for, since it went off when i figured all the other stuff out and came on when i hit the highway and floored it once. |
07-09-2010, 10:08 PM | #6 |
Scooby Guru
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:2001 LL Bean Outback Winestone |
I suggest you ohm out the data lines to make sure they are ok. If they are good and power is ok on the port port then the data port of the ECU may be damaged.
|
07-12-2010, 06:50 PM | #7 |
Scooby Newbie
Member#: 237228
Join Date: Feb 2010
Chapter/Region:
MWSOC
Location: Kalamazoo, MI
|
I had a loose connection at connector, went and salvaged one and redid it and now i have good connection and all wiring is good. I suspect that maybe ECU? Looks like its been out before. Can an ecu have a bad diag section of ecu and nothing else wrong with it?
Also could the PO hookin it up to w DOHC with avcs wiring harness and ran it could have messed with the ecu? |
07-12-2010, 07:45 PM | #8 |
Trust no one
Moderator Member#: 11170
Join Date: Oct 2001
Chapter/Region:
Tri-State
Location: NYC
Vehicle:02 RAV4 MT 15 WRX/11 CRZ |
If it's the JDM ECU it may not be able to communicate with an OBDII scanner. Anyway I see you have a similar thread in the Conversions forum where I was going to move this, so I'll just close it. I'm sure you'll get what you need over there.
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
2001 Legacy Outback Limited electrical issues | jetfan2207 | Electrical & Lighting | 3 | 04-25-2010 10:51 PM |
newly developing issues with 97 Legacy Outback Lmtd | stant093@ | Normally Aspirated Powertrain | 2 | 03-31-2009 03:32 PM |
Issue with 96 Legacy Outback - need help! | evilwankel | Electrical & Lighting | 0 | 12-14-2008 01:36 PM |
2K Legacy Outback Power Locks, Windows & Driver Side Seat Issue | gusto | Electrical & Lighting | 1 | 06-03-2005 12:29 PM |
Coworker issue with 2000 Legacy Outback | gusto | New England Impreza Club Forum -- NESIC | 4 | 06-03-2005 11:50 AM |