Pulling Codes

Makdaddymac · Nov 3, 2008

hey all how do i pull codes off my 94, it has an obd-2 style port.
auto zone hooked it up and it said error i need a way to do this im having some running issues, its a little different when all the scanners say 96+ and my
88's scanner has an old style obd1 port

what are you guys using to do this? test light? paperclip? i know there is free way but i do want a scanner for my tool box

94GTCoupe · Nov 3, 2008

the test port for the 94-95 GT is under the hood on the passanger side strut tower.our cars are OBD1.
i use the Innova #3145,it's just code reader though,not a scanner.

i think the test port for the 94-95 V6 mustangs use the test port under the dash on the drivers side.i THINK these are OBD2??? NOT SURE THOUGH.

Makdaddymac · Nov 3, 2008

right but i have an obd2 port under the dash......
was this just ford planning for the 96?

mhespenh · Nov 4, 2008

I know OBD-II compliance wasn't required until '96, but I swear I read somewhere that our 94/95s were at least PARTIALLY OBD-II compliant (as in at least some of the codes/polling should work).

Can anyone confirm/deny this authoritatively?

EDIT: Okay, after some research I found this:
According to this site the following engine family for the 1994 Mustang is partially OBD-II compliant: RFM3.8V8G1EK
And for 1995: SFM3.828G1EK

I have no idea what that means, but the 3.8 leads me to think V6 engines only

source: http://www.obdii.com/connector.html

I haven't personally used this, but perhaps it could work for easily reading codes (without the counting flashes PITA)
http://store.autotoolexpress.com/obfoscto.html

HISSIN50 · Nov 4, 2008

As properly noted, the V8 '94-95's are OBD-I and use the STC on the passenger side firewall.

The 94-95 V6 cars were OBD-II, hence our cars having both connectors. The OBD-II connector will not work on GT/Cobras.

Use the connector under the hood and expect to see 3 digit OBD-I codes.

mhespenh · Nov 4, 2008

Makdaddymac said:
right but i have an obd2 port under the dash......
was this just ford planning for the 96?

From the same source I linked to above (note, Ford uses PWM for OBDII):

J1850 PWM--The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.

If your vehicle has this style connector, but doesn't have these pins populated, you probably have a pre-OBDII vehicle. To add some confusion, even having the connector with the contacts shown above is not a guarantee of OBD II compliance. This style connector has been seen on some pre-1996 vehicles which were not OBD II compliant.

Makdaddymac · Nov 4, 2008

ok well it was dark out at autozone and i didnt even think about the under th hood, i figured i wasnt in my fox and i had a newer style car hehehe but oh well obdI =les o2 sensors!!!!= cheaper fix!!!

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