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Thread: 2006 mazda 3 idle issues.

  1. #1
    Registered Member

    mazda 3

    Join Date
    Dec 2017

    2006 mazda 3 idle issues.

    Hey all! I have 2006 mazda 3

    So over the last two days my mazda has had an issue arise !

    When I start the car it seems the RPM'S jump all over the place, lights dim etc etc almost stalls out.

    As soon as I rev the car for 5 seconds the car idles back to normal RPM and is driveable afterwards

    Ive also changed spark plugs, cleaned the MAF, also checked for cracks.

    Could it be my EGR valve? The error code is p0171 to lean.

    I also recorded a video of it.
    Last edited by hegsy; 12-06-2017 at 05:25 AM.

  2. #2
    Registered Member

    Join Date
    Feb 2018
    Have you resolved the issue yet? I know post is a little dated. Figured I’d ask since I just came across!

  3. #3
    Registered Member concept's Avatar

    2014 Mazda3 S GT auto, 2008 MX5 6-speed

    Join Date
    Mar 2009
    San Diego
    Possible causes
    Intake air leaks
    Faulty front heated oxygen sensor
    Ignition misfiring
    Faulty fuel injectors
    Exhaust gas leaks
    Incorrect fuel pressure
    Lack of fuel
    Faulty Mass Air Flow (MAF) sensor
    Incorrect Positive Crankcase Ventilation (PCV) hose connection
    * What does this mean?
    Tech notes
    If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced.
    2014 3S GT, Deep Crystal Blue, Eibach Pro-Kit, Enkei PF01s, Koni Sports, Pirelli P ZERO ALL SEASON PLUS tires, 225/45/18
    2008 MX-5 Touring (Mazdaspeed CAI, HIDs, Progress/Koni Sports/Racing Beat sways, SST Magnaflow muffler and tips)

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