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Pontiac: obd 1-obd 2 ????

  1. #1
    res0ta8b
    Guest

    obd 1-obd 2 ????

    i happen to have one of those systems in between the two obd systems,a
    transitional system i am told,a 94 pontiac,the obd 1 code reader(or the
    trick of jumping the two top corner slots,flashing check engine light to
    read the codes)will not work,the pins are lined up differently,and the
    system is not the obd 2 system at all.i find it hard to believe that there
    besides an expensive scanner gizmo or paying big bucks at a dealer ,is not
    some way to read the codes,surely there is someone who has found a way to
    jump some combo of pins or knows something to read the codes or this
    system?i keep getting a ABS light on at times and have been told to check
    the computer codes,can somebody please help.?



  2. #2
    «
    Guest

    Re: obd 1-obd 2 ????

    res0ta8b wrote: 

    You already know the answer.
    A serial reader is needed to read the serial data.
    An ABS reader is needed to read the ABS data.
    The two readers are often separate devices.

  3. #3
    Darin
    Guest

    Re: obd 1-obd 2 ????

    I've got a 95 with the same issue.
    The connector is ODB-2
    and the computer is ODB-I

    You need a cable which costs about 95 dollars (new).. I just sold mine.
    Check the "electronics" section of www.camarz28.com


    "res0ta8b" <net> wrote in message
    news:lsJXb.23610$gnilink.net... 



  4. #4
    res0ta8b
    Guest

    Re: obd 1-obd 2 ????

    thanks for the info,but my connector on the poncho is nothing like a
    connector for a obd 2 ,and if it's a obd 1 computer,wouldn't thier still be
    a couple of the pins you could jump to read the codes via the flashing
    "check engine" light???lso the link on the camarz28 in dead,.
    "Darin Ginther" <com> wrote in message
    news%hYb.855$texas.rr.com... 
    there 
    not 
    to 
    check 



  5. #5
    DonW
    Guest

    Re: obd 1-obd 2 ????


    "res0ta8b" <net> wrote in message
    news:lsJXb.23610$gnilink.net... 
    Look at: http://www.obdii.com/
    I've got a 95 S10 pu with the labeling showing obd1 but it has the 16 pin
    connector and I can't read the codes by jumpering pins. Info from the above
    site doesn't show any 1994 GM vehicles as being obd2 compliant.



  6. #6
    «
    Guest

    Re: obd 1-obd 2 ????

    res0ta8b wrote: 

    You already know the answer.
    A serial reader is needed to read the serial data.
    An ABS reader is needed to read the ABS data.
    The two readers are often separate devices.

  7. #7
    Taz
    Guest

    Re: obd 1-obd 2 ????

    You can't jumper anything past 1993. You need an OBD-1 scantool with either
    a 16-pin or 12-pin cable, depending upon your application.



    "DonW" <net> wrote in message
    news:V4JYb.542081$easynews.com... 
    there 
    not 
    to 
    check 
    above 



  8. #8
    res0ta8b
    Guest

    Re: obd 1-obd 2 ????


    "Taz" <taz> wrote in message
    news:4036e0d7$0$3094$rcn.com... 
    either 

    i don't have an actual obd 1 code reader(which is what the connector is in
    the car-obd 1) for these i have always jumped the two top left hand side
    pins to get the "check engine" light flashing the codes,but the pins are in
    different locations and no combo is working.i do have a obd 2 code reader
    but the connector is different,all the obd 1 readers i've seen are a one
    piece just attach it on type,not one's like my obd 2 with a cable hook up.i
    'm a little lost on just what exactly i need or jump to get the codes.(short
    of just taking it in,i'm sure there is some way or reader on the market to
    handle the transitional years) thanks 
    systems,a 
    the 
    to 
    pin 



  9. #9
    «
    Guest

    Re: obd 1-obd 2 ????

    res0ta8b wrote: 

    Then you are out of luck.

    Get an obd 1.5 reader and hook it's serial data wire to aldl pin 09.
    Hook the ground wire to pin 05, or a suitable ground.
    If your reader uses car's +12v, then run that wire to the fuse block.

  10. #10
    res0ta8b
    Guest

    Re: obd 1-obd 2 ????

    thank you for your rewsponse paul ,but all isee are the regular small one
    pice gm obd 1 code readers for sale(around 20 bucks)is thier a difference
    between these and an obd 1.5 reader?if not how would you hook up seperate
    pins if the reader fits over the connector?? thanks
    "« Paul »" <rr.co.tx> wrote in message
    news:rr.co.tx... 




 

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