OBD II acting up
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Junior User
Joined: Dec 2006
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OBD II acting up
Hello all,
Now, I know this is a beating subject because I have search it and found lots of people having the problem but never get to the cause. I have a 1997 F-350 auto, 7.3 DI.
I can not get communication between scanner and truck, I have power at the fuses, the truck runs perfect. I have a DP tuner that I can not flash the PCM cause I can not get communication, I also have a Edge insight and that can not talk to the PCM.
Is it common for just a plain bad connector? I just cant see it ....
any ideas ?? (spent a lot of money on tuners and monitors to not work!)
Now, I know this is a beating subject because I have search it and found lots of people having the problem but never get to the cause. I have a 1997 F-350 auto, 7.3 DI.
I can not get communication between scanner and truck, I have power at the fuses, the truck runs perfect. I have a DP tuner that I can not flash the PCM cause I can not get communication, I also have a Edge insight and that can not talk to the PCM.
Is it common for just a plain bad connector? I just cant see it ....
any ideas ?? (spent a lot of money on tuners and monitors to not work!)
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
You'll have to pull the PCM to see what the program code on it is.
Posting Guru
Joined: Dec 2008
Posts: 2,347
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From: Maysville, Kentucky
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Junior User
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and what chip are you referring too?
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Posting Guru
Joined: Dec 2008
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From: Maysville, Kentucky
Ok makes more sense. Dp tuner is normally a chip that's where I got that. Honestly check to make sure no one installed a chip in the back of the pcm. I know you took it out but did you check.
Posting Guru
Joined: Dec 2008
Posts: 2,347
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From: Maysville, Kentucky
It would plug in from the back of the pcm. There is a plastic cover from the factory over the hole. You can take the park brake bracket off and look and see. It's very easy to see. Most people will put duct tape across a chip to hold it in place.