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Thread: Check Engine Light came on yesterday. P0340

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    Senior Member Cobrajet's Avatar
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    Check Engine Light came on yesterday. P0340

    Went to go to work yesterday, and my Mirage had a little trouble starting. It cranked longer than usual, and when it finally started it ran rough and sputtered for a few seconds. Once it cleared up, the CEL came on.



    I did not have time to diagnose it before work, so I just had to go with it. After about 10-15 ignition cycles, the light went off. It has not been back on since.

    When I got home from work I hooked up my OBDII scanner, and came up with a stored code P0340: Camshaft Position Sensor Circuit Malfunction.

    The last time I had started the car before driving it was when I moved it back into the driveway after parking it on the road to get another vehicle out. It was running for all of 15-20 seconds, and we all know that Mirages don't really like being turned on and immediately turned back off again.

    I guess I will have to wait and see if it comes on again...



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    Moderator Eggman's Avatar
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    Quote Originally Posted by Cobrajet View Post
    Went to go to work yesterday, and my Mirage had a little trouble starting. It cranked longer than usual, and when it finally started it ran rough and sputtered for a few seconds. Once it cleared up, the CEL came on.
    That stinks.

    Quote Originally Posted by Cobrajet View Post
    When I got home from work I hooked up my OBDII scanner, and came up with a stored code P0340: Camshaft Position Sensor Circuit Malfunction.
    Loose timing chain?

    Start & stop operation can be brutal on a car.
    2015 Mitsubishi Mirage ES 5-speed with pushbutton start, automatic climate controls, original Dunlop Enasaves and no center console.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Senior Member Dirk Diggler's Avatar
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    I had to replace that exact same sensor on my Outback! I think the total cost was like $700, but I went to a shop. Could you find an aftermarket sensor for your ride?

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    Hopefully, it's nothing & just related to the event you already shared. I've had a few times where I conked out my Forester & have had the engine light come. Next time I start it up after that event, the light is gone for good. For all I know I may have some stored codes on my Forester. If the light is back off for good, who cares?

    Thus, I think these things happen with other vehicles, too. I'm sure you'll give us an update, but I hope it's nothing for your sake!
    Last edited by Mark; 12-20-2019 at 04:49 AM.

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    Senior Member dspace9's Avatar
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    How often is your Mirage just parked? Like for days? I think most cars' batteries benefit from being driven around at least somewhat. Anyway cheers good luck

    My own '14 Mirage has had the "service engine soon" dash light on, for like months now. Evap leak that my friend said is normally associated with older cars. His old Cavalier with 485k on it had the issue. Mechanics can't seem to pinpoint the issue.

    I just drive around with the engine light on. Whatever, wouldn't be the first car. My motor purrs great and my Mirage drives straight.

    I don't smell any gas fumes lol!!!
    Last edited by dspace9; 12-20-2019 at 09:14 AM.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


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    Senior Member Cobrajet's Avatar
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    My Mirage is driven about 500-600 miles a week...every week. It doesn't sit much, and has a fairly fresh battery.

    The cam sensor isn't too hard to get to on these cars, as it is on the end of the cylinder head above the transmission. The FSM says a coolant crossover pipe has to be removed to get it out, but other than that it is just one 10mm bolt and an electrical connector. I was really hoping it wasn't under the valve cover or timing cover, and it isn't.

    The part itself can be found for about $85. Car was perfect last night when I drove it, so I guess I just have to wait and see.

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    Senior Member dspace9's Avatar
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    Right on Cobrajet. Ya wait and see like you say. Maybe just a fluke thing.. like if your Mirage seems to be driving perfect, then why bother with a new part. Yet anyways.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


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    My 14 did the same thing once after an abrupt start stop. Acted like a goober for a half a day and then went back to being it’s completely perfect little self. I bet yours will as well.
    Resident Tire Engineer

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 44.4 mpg (US) ... 18.9 km/L ... 5.3 L/100 km ... 53.3 mpg (Imp)


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    Moderator Eggman's Avatar
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    Quote Originally Posted by Cobrajet View Post
    When I got home from work I hooked up my OBDII scanner, and came up with a stored code P0340: Camshaft Position Sensor Circuit Malfunction.
    Hey Cobrajet has this come back?
    2015 Mitsubishi Mirage ES 5-speed with pushbutton start, automatic climate controls, original Dunlop Enasaves and no center console.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  10. #10
    Senior Member Cobrajet's Avatar
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    Quote Originally Posted by Eggman View Post
    Hey Cobrajet has this come back?
    Nope. That was at 134k. Now at 157k, and I haven't seen the CEL since.



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