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02 civic EX misfire

Discussion in '7th Generation Honda Civic (2001-2005)' started by kyral, Oct 31, 2017.



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  1. kyral

    kyral New Member 5+ Year Member

    Joined:
    Dec 7, 2010
    Messages:
    56
    Location:
    wisconsin
    got a 7th gen civic i think its the d17a2 motor
    anyways what cause very light and seldom misfires?
    the car runs smooth but occasionally misfires when you let off the throttle occasionally while cruising and a little at start up
    i put new plugs in and flip flopped my coil packs cause the codes were cyl 1 and 2 well its still missing on cyl 1 and 2 (coils 1 and 2 moved to cylinders 3 and 4)
    it doesnt affect driveability it just happens randomly. i do notice it but i think most ppl wouldnt
    what are common issues cause this is ridiculous... someones telling me it might be injectors... i dont get this obd2 junk
     
  2. boofoo

    boofoo Respected Registered VIP

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    Oct 15, 2016
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    2,246
    Location:
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    Do the misfires move with the fuel injectors? If not, compression test the cylinders.
     
  3. Mr.Baker

    Mr.Baker Mr. Search Registered VIP 5+ Year Member

    Joined:
    Jul 19, 2011
    Messages:
    2,248
    Location:
    Fingerlakes Region, NY
    How many miles on it?
    Have you had the valves adjusted?
     
  4. kyral

    kyral New Member 5+ Year Member

    Joined:
    Dec 7, 2010
    Messages:
    56
    Location:
    wisconsin
    flip flopping injectors is the next step. i doubt its the valves since its very inconsistent and hard to replicate
     
  5. kyral

    kyral New Member 5+ Year Member

    Joined:
    Dec 7, 2010
    Messages:
    56
    Location:
    wisconsin
    So its recently become very consistent, experience at at light throttle and when you let off the throttle. car fires right up and seems very healthy when you step on the gas
     
  6. boofoo

    boofoo Respected Registered VIP

    Joined:
    Oct 15, 2016
    Messages:
    2,246
    Location:
    United States
    Did you do the injector swaps?
     


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