96 F250 how do i read codes?
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96 F250 how do i read codes?
Hi all, great site you got here. I have a question about my truck, a 96 F250 351 4x4. How do I read the engine codes, or more specifically, is it EEC-IV or OBD-II? Everything I see online says it's OBD-II but the manuals I have say EEC-IV. Need to know for sure so I can buy a code reader.
Thanks
Thanks
Posting Guru
Joined: Jun 2004
Posts: 1,781
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From: Central NY
see fordfuelinjection.com for instructions.
You don't need a code reader to pull codes :-)
In my understanding, obd2 is a interface specification so the computer can talk to standardized diagnostic equipment. Your computer will use EEC-IV internally and speak to the diagnostic equipment in ODBII
Popa Tim
You don't need a code reader to pull codes :-)
In my understanding, obd2 is a interface specification so the computer can talk to standardized diagnostic equipment. Your computer will use EEC-IV internally and speak to the diagnostic equipment in ODBII
Popa Tim
Lead Driver
Joined: Nov 2002
Posts: 9,557
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From: Concord, NC
EEC-IV is not OBD-II compliant. If it is OBD-II (EEC-V is the first OBD-II Ford computer) it will have a black plug within a certain distance from the steering wheel and you will need a code reader to get the codes. The OBD-II plug is usually attached to the bottom of the dashboard, but I don't know for sure where it would be on your truck. If it is EEC-IV, then there will be a diagnostic port under the hood, likely attached to the drivers side fender just behind the hood spring, and like Popa Tim said, you can pull those codes yourself.
Elder User
Joined: Sep 2004
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OBD-II was EPA mandated for the 1996 model year. According to this handy site:
http://autocenter.weber.edu/OBD-CH/vehicleoems.asp
Your F250 should be OBDII compliant and the diagnostic connector is underneath the ashtray on the passenger side of the dash. If you see a black connector there, about 1.5 inches by 3/4 inch, you indeed have OBD-II.
http://autocenter.weber.edu/OBD-CH/vehicleoems.asp
Your F250 should be OBDII compliant and the diagnostic connector is underneath the ashtray on the passenger side of the dash. If you see a black connector there, about 1.5 inches by 3/4 inch, you indeed have OBD-II.
Posting Guru
Joined: Jan 2001
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From: Nebraska
Most 1996 and even 1997 F-250's and up were still OBD-I. My guess is there must have been an exemption from the 1996 mandated OBD-II above a certain GVWR. The connector is under the hood on the driver's inner fender near the firewall for OBD-I. If it is OBD-II, the connector is under the dash to the right of the ashtray.
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