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cel occasionally coming on

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    #1

    cel occasionally coming on

    as you may know from my previous post i was having map sensor issue (cel code 5). well, i went and took the car to get a vacuum pressure test and nothing was wrong. actually the cel hasnt been on at all in the past 1.5 months.

    so i go to start it to hit my friend's place today and on it comes. it seems to come on occasionally which makes trying to pull a code difficult. it does run a little rough, like it did the last time it came on.

    should i go ahead and change the map sensor? anything else that may be causing this? haven't reset the ecu and will try that and let you know what's up.

    also was told that honda discontinued this part. should i try aftermarket? if so, what brands do you recommend? go used?
    Tags: None
    #2
    you can still get the code eventhough the cel is not on anymore. should be stored in the ecu. i would read that first and go from there. later.
    Avoiding dirt at all costs

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      #3
      ok i will go down and try that first and let you know. thanks!

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        #4
        ok so i managed to pull it and it is a code 5. now i know there;'s some tests that need to be done with a wiring harness. i dont have the equipment. can i just replace the map sensor and i'd be ok?

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          #5
          if cel 5 is telling you that your map sensor is bad, then yes, replacing it with a good one should fix the problem. be sure to reset the ecu after you replace it.

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            #6
            Originally posted by PG92LX View Post
            if cel 5 is telling you that your map sensor is bad, then yes, replacing it with a good one should fix the problem. be sure to reset the ecu after you replace it.
            That's horrible advice. Especially in these hard times.
            What if its a connector issue?
            Just try to find someone with a dvom or even better an oscope. And pull a wiring diagram for the sensor.

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              #7
              youre right, telling someone to replace a part that the ecu is reporting as faulty is horrible advice. connectors go bad all the time in these cars (that is actually sarcasm... ive seen many failed map sensors, never a failed connector for the map sensor)

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