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obd reader

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Selahdoor, Sep 1, 2019.

  1. Selahdoor

    Selahdoor How can I help you, or make you laugh, today? Supporting Member

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    Ok, 92 f250 7.3idi e4od


    What kind of readers are available? Are there any?

    What am I looking for, and how do I use it once I find it?


    Thanks guys. :D
     
  2. BeastMaster

    BeastMaster Full Access Member

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  3. Mike327

    Mike327 Registered User

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  4. IDIBRONCO

    IDIBRONCO IDIBRONCO

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    I think you're right on this one. First, IIRC, the PSD uses an OBDII connector for the OBDI computer. Second, the 94 and some of the 95 PSDs are hard to get anything to do much with their computers. The shop I worked at had a NGS Star scan tool (that was supposed to be what Ford used). It would do WAY more with a 96/97 PSD computer. Some of the 1995s worked that way too. It was probably the build date that made the difference.
     
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  5. Exhumis

    Exhumis Full Access Member

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    I have a 94 na and have this exact reader. Works perfect. I highly recommend getting the extension cable. No it's not necessary but makes life nicer.
     
  6. Selahdoor

    Selahdoor How can I help you, or make you laugh, today? Supporting Member

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    Ok, I've ordered the 3145 OBD1 reader from amazon. I'll probably get the extension cord and the book as well. Anything else I should know about?
     
  7. Mike327

    Mike327 Registered User

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    Now that I have used it I can definitely see where the extension cord would make it more convenient. Not sure what book you’re talking about? The reader comes with a book that has the instructions for the unit and all the codes and how the system works.
     
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  8. Selahdoor

    Selahdoor How can I help you, or make you laugh, today? Supporting Member

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  9. saburai

    saburai Supporting Member Supporting Member

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    This. I've got the same one as well, does the trick on my '90 & '94 idit. Recommend the extension cable, you can sit in the cab or drive with it hooked up on the dash.
     
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  10. mu2bdriver

    mu2bdriver Full Access Member

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    I struggled without the extension cord for over a year until I realized how much easier it was to sit in the cab of the truck and work through issues. The extension cord is as valuable as the reader.


    Sent from my iPhone using Tapatalk
     
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  11. Selahdoor

    Selahdoor How can I help you, or make you laugh, today? Supporting Member

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    Going to need to use this again today.

    I have a question, first.

    The instructions say, plug in reader. Turn on key. Do not start engine. Read codes.

    That's it.

    But I have read a couple places on here, something about not getting accurate codes, if you don't depress the go pedal.

    Is that true?

    If so, do you depress the pedal before you turn the key on, or after? Do you just hold the pedal down, or release it?
     
  12. Jason1377

    Jason1377 Supporting Member Supporting Member

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    Ok I'm a pure novice to this buying stuff off Amazon and using a code reader did it take long an will the reader point out where a short might be or what the transmission might hestate not really a slip but changing gears with speed since mine is a E40D going from say 55 to 65 it will act like it's stepped back for a split second
     
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  13. DaveBen

    DaveBen Supporting Member Supporting Member

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    The code reader will tell you what codes are stored in the PCM. When you read them it will give you a code number and a few words related to the code. It is NOT a diagnose of what is wrong with your truck. It will say something like "#1084 - out of range". you can post what the reader says here and we can help.
     
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  14. IDIBRONCO

    IDIBRONCO IDIBRONCO

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    From my experience with mine and others in the past, just follow the instructions on the screen. Just to pull codes, you shouldn't have to press the accelerator.
     
  15. Selahdoor

    Selahdoor How can I help you, or make you laugh, today? Supporting Member

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    It didn't do any of that. Just spat out numbers. I already looked them up.

    10 - Cylinder #1 failed cylinder balance test. (How it could get that result with the engine not running, I have no idea. And I didn't think our engines had anything like a real computer that could do such a thing, anyway.)

    23 - TPS voltage higher or lower than expected. (I expected this.)

    26 - MAF sensor out of range. (I believe that is instead referring to that "barometer thingy", on the firewall. I have suspected that thing for a while now.)

    29 - Insufficient input from Vehicle Speed Sensor. (I have a new one already. I'll replace it when I get the chance.)

    67 - Neutral safety circuit failure. Or AC circuit was on during self test. (It was not.)
     

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