• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 Mustang Tech

OBD-II in a '95 V6?

  • Thread starter Thread starter thesargster4
  • Start date Start date Aug 15, 2008

thesargster4

New Member
Aug 5, 2008
23
0
0
Aug 15, 2008
#1
  • Aug 15, 2008
  • #1
Hey guys. Finally got her up and running, two days later... its still running strong but i got a check engine light.. I notice an OBD-II port under the dash, and i've tried two OBD-II readers, and they dont even get power.. Am i missing an older type port, or what could be going on? I dont think the PCM is fried, its running to good for it to be..

Thanks!

John
 

Skymarshal

Member
Nov 5, 2004
572
0
16
Dallas
Aug 16, 2008
#2
  • Aug 16, 2008
  • #2
...which means that you can pull any codes using the jumper wire method. The procedure is in the service manual. OBD-I is not as comprehensive in helping you with diagnostics, but at least it's easier to pull codes since you don't need a reader.
 

thesargster4

New Member
Aug 5, 2008
23
0
0
Aug 18, 2008
#3
  • Aug 18, 2008
  • #3
Hmm, still a little confused. I know its OBD-I compliant, but the port is a PRE-OBD II com port, so im a little fishy on what scanner to buy..

Thanks
 

Skymarshal

Member
Nov 5, 2004
572
0
16
Dallas
Aug 21, 2008
#4
  • Aug 21, 2008
  • #4
You don't need a scanner.

You hook a jumper between your positive battery post and one of the terminals in the diagnostics port. Your check engine light will flash out the code for what's wrong. You can make a jumper with an insulated alligator clip from Radio Shack and some wire- just be careful not to short it on the body or anything else!

http://http://www.muscularmustangs.com/test1.php
 
9

95trippleblack

Member
May 15, 2006
60
0
6
Chicago
Aug 21, 2008
#5
  • Aug 21, 2008
  • #5
I am 99% sure that a 95 V6 is OBD2. Their are a few cars that were obd2 before 96 and the 94 and 95 v6 mustang is one of them. Bring it to autozone and let them read it
 

Skymarshal

Member
Nov 5, 2004
572
0
16
Dallas
Aug 21, 2008
#6
  • Aug 21, 2008
  • #6
maybe..... but OBD-II is supposed to be a standardized interface. I wonder why the readers aren't getting any data?
 
F

faststang_728

Founding Member
Jan 30, 2002
558
0
0
Greenbrier, WV
Aug 21, 2008
#7
  • Aug 21, 2008
  • #7
Its OBD II, You may have a open wire to your DLC connector. use a DMM and check for voltage at the top left pin of the connector. It should always have voltage with the key on. There are other things that may make it not communicate such as an unplugged sensor.
 
R

rebelcowboy

New Member
Mar 13, 2008
46
0
0
Aug 21, 2008
#8
  • Aug 21, 2008
  • #8
the car is not obd-II,96 and up are obd-II my wife has a 95gt and it has the plug under the dash but it was never hooked up from the factory,the test plug u need is on the pssenger side fender close to the a/c stuff on the firewall.u can buy tester after tester for the obd-II and it will never work,its obd-I,only 96 and newer vehicles are obd-II.the plug under the hood should have a black cover and say eec test.it has a big plug and then a small grey plug.
 

Raytown

New Member
Aug 24, 2008
8
0
0
Aug 24, 2008
#9
  • Aug 24, 2008
  • #9
It totally depends

It's OBD-II, i agree on that one. See, 95 was the last year of obd-I support, and was the transition to obd-II in 96. Now, some cars (not all) used obd-II systems in 95, and was usually found on higher end cars, like the mustang, corvette (hate em), etc... you get the picture. Seriously, 95 was a very funny year for alot of cars concerning obd-I or obd-II support. My 95 mustang V6 is OBD-II.
 

tb9050lx

Member
Mar 7, 2004
155
3
19
ct
Sep 7, 2008
#10
  • Sep 7, 2008
  • #10
rebelcowboy said:
the car is not obd-II,96 and up are obd-II my wife has a 95gt and it has the plug under the dash but it was never hooked up from the factory,the test plug u need is on the pssenger side fender close to the a/c stuff on the firewall.u can buy tester after tester for the obd-II and it will never work,its obd-I,only 96 and newer vehicles are obd-II.the plug under the hood should have a black cover and say eec test.it has a big plug and then a small grey plug.
Click to expand...

the obd 2 port under the dash is actually for the gem module >95 is still obd1 and the connecter will be under the hood
 
A

AxeMusic

New Member
Sep 9, 2008
4
0
0
Cincinnati, OH
Sep 9, 2008
#11
  • Sep 9, 2008
  • #11
Thanks guys, esp Skymarshall. I know little about Stangs specifically, but this info will get me started on my son's '94 I mentioned in another thread.

Axe
 
R

Ridin Tang

New Member
Aug 6, 2009
2
0
0
Aug 6, 2009
#12
  • Aug 6, 2009
  • #12
funny...my obd II scanner works in my 95 v6...
 

393strokervert

Member
Jun 12, 2009
340
0
17
florida
Aug 6, 2009
#13
  • Aug 6, 2009
  • #13
94 & up V6 stangs are OBDII

94 & up V6 stangs are OBDII 5.0's are not. I had a 95 v6 vert & it was definitely OBDII as I used the port under the dash with my OBDII scanner. the same scanner that I still use on every car in my household except for my 95 GT.not sure why there is no power at the port but take it to Advance or Autozone & see what they say.
 

MustangLX-5.0

Founding Member
Dec 2, 2000
856
7
38
Lehigh Acres Fla.
Aug 7, 2009
#14
  • Aug 7, 2009
  • #14
Thank you 393Stroker. Fact!

94-95 GT's, which have the 5.0 302 engine are EEC-IV (aka OBD I). The 5.0's are the ONLY Stangs with OBD-I pcm's. The 94 and up 3.8 V6 Stangs are ALL OBD-II systems. The only thing different between the 94-95 V6's and the 96 and up V6's is that the 94-95's still contain Ignition Control Modules, while the later ones don't. It's all built in to the PCM on those. There are a few other differences, but I wont get into that..way off topic.

So 94-95 V6 people, go ahead and fire up that OBD-II scanner. If no scanner will work when plugged in, either there is a wiring problem on the data connector, or a faulty sensor is overloading the PCM. A no read display will occur if this IS the case. Unplugged sensors wont cause a no-read situation. It will just throw a code for no signal, no voltage, etc.
 

Carl3.8v6opalfrost

New Member
Sep 24, 2021
13
0
1
Deport texas
Dec 13, 2021
#15
  • Dec 13, 2021
  • #15
When I turn on my key I have no light that test to check engine light so I don't know if it works or not how do I find out. My car is running rough after head gaskets. Acts like it's missing spark plugs smell like gas . No check engine light
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,231
17,916
224
Massachusetts
Dec 13, 2021
#16
  • Dec 13, 2021
  • #16
Carl3.8v6opalfrost said:
When I turn on my key I have no light that test to check engine light so I don't know if it works or not how do I find out. My car is running rough after head gaskets. Acts like it's missing spark plugs smell like gas . No check engine light
Click to expand...

The CEL should come on when you turn the key to on and do not start the engine. If it doesn't it's possible that the bulb is burned out.

With it being a V6 and having OBD2, you can plug in an OBD2 scanner and it will read codes/data/etc. That would be the first step I would take
 

Carl3.8v6opalfrost

New Member
Sep 24, 2021
13
0
1
Deport texas
Dec 13, 2021
#17
  • Dec 13, 2021
  • #17
Mustang5L5 said:
The CEL should come on when you turn the key to on and do not start the engine. If it doesn't it's possible that the bulb is burned out.

With it being a V6 and having OBD2, you can plug in an OBD2 scanner and it will read codes/data/etc. That would be the first step I would take
Click to expand...
Why would I think it would be that easy. Wasn't sure saw obd2 looking plug but didn't think obd2 came out till 1996.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,231
17,916
224
Massachusetts
Dec 13, 2021
#18
  • Dec 13, 2021
  • #18
Carl3.8v6opalfrost said:
Why would I think it would be that easy. Wasn't sure saw obd2 looking plug but didn't think obd2 came out till 1996.
Click to expand...

It was rolled out in 1996, but Ford equipped the 94-95 V-6 Mustangs with it early.

The v8 model didn’t get it until 1996.
 

Carl3.8v6opalfrost

New Member
Sep 24, 2021
13
0
1
Deport texas
Dec 13, 2021
#19
  • Dec 13, 2021
  • #19
Mustang5L5 said:
It was rolled out in 1996, but Ford equipped the 94-95 V-6 Mustangs with it early.

The v8 model didn’t get it until 1996.
Click to expand...
Thank you. Went and pluged into. Found P0102 maf it was unplugged..now to replace damn bulb thanks
 
You must log in or register to reply here.

Similar threads

SURGING IDLE / NO IDLE CHECKLIST FOR 1996–1998 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
710
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
864
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
R
What's it Worth? 1997 Cobra, a ton of mods and restoration
  • riored97snake
  • Jun 18, 2026
  • What is it Worth?!?!?
Replies
2
Views
114
What is it Worth?!?!? Jun 21, 2026
riored97snake
R
J
03 automatic V6 mustang
  • jewbrew
  • Jul 17, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
162
1996 - 2004 SN95 Mustang -General/Talk- Jul 17, 2025
jewbrew
J
S
07 v6 4.0 wiring issue .In desperate need of help.
  • Staycstang
  • Sep 19, 2025
  • 2005 - 2014 Specific V6 Tech
Replies
1
Views
371
2005 - 2014 Specific V6 Tech Sep 19, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?