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    Thread: 2009 Aveo OBD I/M test

    1. #1
      What's wrong with my car?
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      2009 Aveo OBD I/M test

      Was scanning engine for any codes and came across the I/M test which shows that the EVAP as inc. is this normal? If not what could I do to troubleshoot the issue as to why the test is inc.



    2. #2
      Should I keep it?
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      Quote Originally Posted by Mberry View Post
      Was scanning engine for any codes and came across the I/M test which shows that the EVAP as inc. is this normal? If not what could I do to troubleshoot the issue as to why the test is inc.

      I also have a 2009. If i recall correctly, anytime you clear a Trouble Code, or disconnect the battery, all the I/M monitors will be set as incomplete, and they will need to run again, before they are given a okay status on the scan tool.

      EVAP is almost always the last I/M monitor to run and clear. Sometimes it can take 10 or more full drive cycles before EVAP runs. Assuming there are no emission problems, your situation sounds normal to me. It just takes time for it to run. When it eventually runs, it will either clear that monitor, or trip a new EVAP-related Trouble Code. Besides several other criteria, i believe your full level must be 3/4 or less in order for EVAP to even think about running.

      That's my 2 cents.

      Deano

    3. #3
      What's wrong with my car?
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      Thx Iím gonna watch it need to get a smog check done and Iím concerned that this will show on the test as an inc!

    4. #4
      2004 1.6 Auto Rust Free
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      If the fuel tank is over half full, the computer won’t run the test. Let the tank get down to 1/4 tank and take it for a good ride. The test will run.

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      Thx Iíll try that.

    6. #6
      2004 1.6 Auto Rust Free
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      If the code pops up and the check engine light come on....there may be a work around for you. Check with the state dmv rules, most states will allow one IM monitor to be incomplete, so long as the rest passed. To do this you will have to clear the codes, drive it with no less than 3/4 tank of gas, until the rest of the tests pass, and keep the tank level higher than 3/4 tank all the time until after you’re state test.

    7. #7
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      Sounds good thx





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