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Failed Emissions ***HELP***

Discussion in 'Prelude' started by jdmclude, Feb 15, 2007.

  1. jdmclude

    jdmclude Junior Member

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    Stats of my car:
    -JDM H22
    -P13 ECU (Stock) OBD1 connected with a Piggy Back Harness
    -So that's OBD 2 converted to OBD1 in simple words
    -Field AFC/VTEC Controller (Map sensor currently disconnected)

    Maryland emission Law:
    97+ years with ODB 2 connections are connected to a diagnostic machine to tell what's wrong with the car. It check for Tampering with ODB plug, CEL Light, and ODB communications.

    Where I failed:
    My car failed on OBD 2 communications (I am assuming this because of my swap converting the OBD 2 to OBD 1 for the ECU) Basically the computer is trying access an OBD1 ECU and it's failing because the OBD 1 ecu was not made for that type of diagnostics.
    Has anyone had this problem? If so, do you know of a way to wire up the OBD 1 ECU to communicate with the OBD 2 adapter/diagnostic machine? I honestly think I am assed out but I was thinking I could purchase a used OBD 2 ecu and connect it to see if that works, but I doubt it because that motor wired up OBD 1.
     
  2. boostin4fun

    boostin4fun Boosted ls/vtec ohh yeah!

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    What kind of engine harness do you have?? If it is obd2 just disconnect the jumper harness you were using to use a obd1 ecu, and plug in a obd2 ecu for the same engine. Once you are passed switch back if you like. Personally i hate obd2 ecus they suck balls!! Also leave piggyback computers you may be running unhooked temporarily till you are done with the test. If you have it adding fuel or what not you will probably fail the emissions test.
     
  3. jdmclude

    jdmclude Junior Member

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    Sweet, that is exactly what I was going to do, I just didn't know if anyone had any other ideas, but looks like I'll try that out, thanks for the reply. Hopefully I don't get Cel lights because that is what I was thinking if I run a an obd 2 ecu.
     
  4. boostin4fun

    boostin4fun Boosted ls/vtec ohh yeah!

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    No, you should be all good. I dont think you will have any problems with a cel. When your done with your emissions then you can go back to your original setup.:)
     
  5. jdmclude

    jdmclude Junior Member

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    Sweet, I am all over it then, thanks for the hope!!!! hahahahah :)
     
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