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  1. Join Date
    May 2011
    Posts
    481
    #11
    Quote Originally Posted by lancepower View Post
    Yes, the engine start normal after shut down. Nangyayari lang talaga ung long cranking pag matagal naka park.
    your fuel system is not holding fuel pressure. the possibilities are:
    fuel injectors are leaking- this would rresult in black sooty carbon build up at the spark plug tips;
    the fuel pump check valve is no longer capable of holding pressure;
    there might be an external leak along the fuel line;
    the fuel injectors o-rings might be leaking around the fuel rail.
    the fuel cap might be restricting airflow into the tank. if this symptom happens when the weather had been hot, then there is vacuum in the fuel tank that pulls the fuel in the rail back to the tank that would result in longer time pressurizing the fuel rail.

    if you smell raw fuel around the car, that would be a result of an external fuel leak.

  2. Join Date
    Jul 2006
    Posts
    8,557
    #12
    We have a Vios, 2010 E/AT

    I've experienced what you just posted. But it occurs rarely (like once in a year).

    After the engine has started, it misfires, then idles up.

    Lately, I did the liberty of pulling out the spark plugs and re-gapped them. Hindi na nangyayari so far.

    It seems like the casa mechanics beforehand just installed the plugs without checking the gaps. Puro out of spec lahat.

  3. Join Date
    May 2011
    Posts
    481
    #13
    Long cranking before start up and long feed back before response, that explains it

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engine cranks too long before starting