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Thread: Detroit Engine Codes....

  1. #1
    marcel27208's Avatar
    marcel27208 is offline Senior Board Member
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    Default Detroit Engine Codes....

    anyone know what this code is.........

    Engine Fuel Temp
    Short HI 128 174 03

    i actually got this reading from the diagnostics on my dash....but it only pops up if my chk engine light comes on........

    im thinking fuel temp sensor??? which if im not mistaken i replaced it a few years back(did it myself)
    \
    or maybe someone can tell me a site here on the web where i can look up info like this?

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  3. #2
    bob h's Avatar
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    Quote Originally Posted by marcel27208 View Post
    anyone know what this code is.........

    Engine Fuel Temp
    Short HI 128 174 03

    i actually got this reading from the diagnostics on my dash....but it only pops up if my chk engine light comes on........

    im thinking fuel temp sensor??? which if im not mistaken i replaced it a few years back(did it myself)
    \
    or maybe someone can tell me a site here on the web where i can look up info like this?

    A temperature sensor shorted high means that the ecm is seeing reference voltage on the signal line.

    Try this; turn the ignition switch off, unplug the electrical connector from the fuel temp sensor, turn key back on... does the fault code change?
    Bob H

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    marcel27208's Avatar
    marcel27208 is offline Senior Board Member
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    ok...the orange check engine light was coming on and going off constantly......when i was sitting idling one time it came on....i then went to my diagnostic buttons and it gave that above code.........(just to let ya know i wasnt talking about the flashing codes) its been going off and on all day.....now 2morrow when i take ur advice and do this......im drive with it unplugged all day and see if it comes on(ive only gotta do about 50miles) that will be ok to do right??

  5. #4
    pdm
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    Quote Originally Posted by marcel27208 View Post
    ok...the orange check engine light was coming on and going off constantly......when i was sitting idling one time it came on....i then went to my diagnostic buttons and it gave that above code.........(just to let ya know i wasnt talking about the flashing codes) its been going off and on all day.....now 2morrow when i take ur advice and do this......im drive with it unplugged all day and see if it comes on(ive only gotta do about 50miles) that will be ok to do right??
    Unplugged the light should be on, but the code description should change......
    You can't fix stupid......

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    marcel27208's Avatar
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    ok will do this afternoon.....

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    i done it.......chk engine light actually went off?????? so i couldnt get the new code

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    Quote Originally Posted by marcel27208 View Post
    i done it.......chk engine light actually went off?????? so i couldnt get the new code
    Then, go drive it that 50 miles and watch the CEL and fault codes.
    Bob H

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    since i unplugged the plugged back in friday.....my check engine light hasnt came back on???? ive done over 700miles???

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