Hi all i have a 95 f250 (built 6/95) i hooked up my obd2 scanner to check codes and could not pull codes it lights up syncs but never displays codes. I had my trans go into limp mode ( hard shift od light blink) wanted to see if codes stored but nodda. I was also running the ac was thinking maybe clutch fan.
Other things that are weird is cruise. When i am climbing a hill cruise tries to keep up but when it gets below a out 5 mph preset the cruise kicks off. When i first bought the truck (3 months ago 3000 140k) the speedo was bouncing but only does that very little now (speeds of 55-65 mph rest is range is ok).
This truck has obd2 connector


Code scanner is hft OBD II Scanner - CAN & OBD II Deluxe Scan Tool works well with other cars- trucks


So list is

Pull codes
Correct limp mode
Correct speedo (i beleive these are tied together )

 

that code reader most likely will not work with diesel engines.
you need a GOOD unit.
i use either the autoEnginuity or the autoXray EZ scan 6000. but they are not cheap. they both cost rite around $350 each.

 

^^^^^ +1 on the scanner. But if you have any speedo issues, even if it's only in certain ranges, it's probably the VSS in the (rear) diff, and it will make an automatic tranny act up. Check that sensor, and the tone ring that interfaces with it, and the connector and wiring.

 

Mine didn't pull codes either until I ran a few "tests" with the unit, never have to do that on my gas jobs.

 

Gas-engine vehicles were required to be OBD-II (STANDARD OBD-II) by 1996; didn't apply to diesels, at least not until later.

 

'94 through '96 factory PCM's did not have the channel open for obdII. it can only be used if the channel has been opened, most have been opened through the years but not all. the '95 I sold a couple years ago hadn't been opened, I just replaced it with my '97 pcm and sold it.

 

How do i open the channel
Where do i plug the antenna lol

 

To open it it needs to be flashed by the dealer with the latest software

 

last time I talked with Jody at DP he could open them.

 

Ok brother had a bluetooth model connects however whenever i try to pull or view codes the truck shuts off when running and i loose connection. I have to pull it off to reconnect i have no codes. Tested things out fan clutch is ok cleaned vss on rear,and plug on solenoid pack. Everything the a/c runs while driving I have problems could the a/c clutch be hosed? Third brake light is working power port is working but no cig lighter. Hmm.

 

That's cause that code reader doesn't work on your truck.

If the OD light was/is blinking you have codes

 

Can u give some pointers it partialy reads like rpms
So i know it is talking via sae j1850

 

Picked up a mac et 123 limited but was able to find epc1748 in continuous memory only happens when a/c is running when od off light comes on. Hmm
Cleaned the plug on trans both shift and sel. Also vss on rear any ideas all
Ran it after code cleared seems ok will monitor. That reader is a nice tool

 

I was looking for a code scanner since January 2014. The only one I found that fully addresses our situation and does NOT cost over $1000 is made by AutoEnginuity.com. I ordered it this morning from AutoEnginuity Scan Tool Software SP01/SP03/SP05/SP06/SP07 Ford/Chevy/Cummins
Paid $360 for the scanner and the "Total Ford Bundle" which has the OEM codes you are going to need. You have to get the Ford Bundle because the 94.5 - 97.5 year F250/350 7.3L trucks are NOT OBD2. You can read about it on my personal web page (F250 - Welcome to TheGilmores.com)... so no OBD2 codes can be pulled, and in most cases when you connect a code reader to it the thing will appear to not work at all. Only a very limited number of OBD1 codes can be gotten, and that's after you get what ever code reader you have to communicate properly.

These trucks are OBD1 but have OBD2 connectors, so they're essentially mutants as far as codes are concerned... and not the good kind of mutant either.

In summery you don't have any real cheap options below $360. HOWEVER, the the good news is that AutoEnginuity's scanner along with the Ford Bundle enables us regular guys to still do darn near everything without dropping over $1K for professional grade equipment.

 

welcome to FTE.
next time you look for stuff for your truck, remember Clay at RiffRaff diesel. he is only a few hours from you down in Eagle point Oregon