Any Subaru techs on these boards ? Need help with 2015 WRX .
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This is a discussion on Any Subaru techs on these boards ? Need help with 2015 WRX . within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Extended cranking problem . Had it since day 1 . If you simply crank the car when when the engine ...

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    Registered User WPuckhaber's Avatar
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    Unhappy Any Subaru techs on these boards ? Need help with 2015 WRX .

    Extended cranking problem .

    Had it since day 1 . If you simply crank the car when when the engine is cold it would take a good 5 to 6 seconds . I could get it to start by cranking it for a couple of seconds and then stop and let it sit for 5 to 7 seconds . It would usually fire up in a couple of seconds when retried . Took the car to the dealer on July 14th for the second time with this problem and it's been there ever since . I am driving a 2015 Forester loaner thank you very much .

    On the first visit they could not get it to flash a code but experienced it . Their best guess was a software issue and started a case code . They couldn't fix it . This was June 30th and I had just bought the car on the 19th . The day before I took it in for the second time it wouldn't fire . I could crank it till the battery and or starter failed , no fire . I turn it off , lock it up and go back into the house for about 5 minutes . Figuring out my best course of action to get my errands run .

    What the heck I get back in the car and give it my tried and trued crank , wait and crank again and it fires up . It then idles at around 1,800 for more than 5 minutes . Seems a bit long for me so I take it in the next day . I relayed the situation to the tech about the long and high idle and he felt it was normal .

    I had already contacted Subaru NA 5 days before I took it back in so they were/are aware and involved . Some Southeast Tech specialist checked it out and gave the go ahead to replace the ECM . Pretty long wait for parts on a new model . The ECM was ordered on July 18th and got here on the 28th . Sooo , there's finally a light at the end of the tunnel right ?!

    They got it installed and buttoned up on Tues. the 29th . Crank it and it has the same problem . They don't know what to do and say the ball is back in Subaru's court .

    What the heck is wrong with this car ? In my experience with it it seems like fuel starvation . They say it's software related . Well the ECM didn't work so how about trying a new fuel pump ? If it was software related wouldn't all the 2015's have the same problem ?


    Anyone have some ideas please

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    Registered User WPuckhaber's Avatar
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    Probably the normal view of my 2015 WRX base model for the last 18 days .

    Last edited by WPuckhaber; 08-01-2014 at 11:08 AM.

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    Village Idiot McBill's Avatar
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    Quote Originally Posted by WPuckhaber View Post
    If it was software related wouldn't all the 2015's have the same problem ?


    Anyone have some ideas please
    I'm no mechanic/tech by trade, only by hobby, but I know enough to be dangerous. To answer that question above, if it is a software issue it does not necessarily mean that it would affect all 2015's. It could have been a glitch in your specific software or the data could have been corrupted some how before you received the car.

    To me, if the ECU has been eliminated this seems to be, like you stated, a fuel starvation problem. I would definitely start with the fuel pump first and see if that fixes the problem. There is a possibility you could have got a bad fuel pump off the line. If that doesn't work, then I would just start moving up the fuel system all the way to the injectors. If it's nothing in the fuel system, well then, you have me scratching my head.
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    Quote Originally Posted by McBill View Post
    I'm no mechanic/tech by trade, only by hobby, but I know enough to be dangerous. To answer that question above, if it is a software issue it does not necessarily mean that it would affect all 2015's. It could have been a glitch in your specific software or the data could have been corrupted some how before you received the car.

    To me, if the ECU has been eliminated this seems to be, like you stated, a fuel starvation problem. I would definitely start with the fuel pump first and see if that fixes the problem. There is a possibility you could have got a bad fuel pump off the line. If that doesn't work, then I would just start moving up the fuel system all the way to the injectors. If it's nothing in the fuel system, well then, you have me scratching my head.
    If is a 15' then let the dealer worry about it, in my 15' im havig an issue where the gas door wont open i have to wedge a credit card in there and have someone else pull the button at the same time. The dealer said they cant find problem
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    Quote Originally Posted by keegur View Post
    If is a 15' then let the dealer worry about it, in my 15' im havig an issue where the gas door wont open i have to wedge a credit card in there and have someone else pull the button at the same time. The dealer said they cant find problem
    I forgot to note that in my first post. Absolutely let the dealer handle the problem. This should, in no way, be a problem you have to take care of. Let them figure it out and until they fix it, make them give you a loaner car.
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    The sticky gas door is a common problem (there is at least a thread on NASIOC about this).

    My 2005 car sometimes has issues getting started when hot (cranks and cranks) if I don't let the fuel pump prime before starting. Now I'm in the habit of waiting 10 seconds or so after turning on the key to let the pump prime before trying to start.

    Is there any way for you to check fuel pressure in your fuel line near the engine (like install a gauge) to see if the pump is an appropriate supply?
    David - '05 WRX

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    Village Idiot McBill's Avatar
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    Quote Originally Posted by Obeisance View Post
    Is there any way for you to check fuel pressure in your fuel line near the engine (like install a gauge) to see if the pump is an appropriate supply?
    If I was him, I still wouldn't tamper with anything and let the dealer handle it.
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    Went to the dealership today . They can't do anything unless Subaru tells them to . The service writer and tech feel the same about it being a fuel delivery issue . But they can't check it unless Subaru tells them to do so . Come on Subaru , fix the damn car !

    and there it sits


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    Registered User WPuckhaber's Avatar
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    Oh yeah , the fuel door is fixed

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    Registered User JaySin's Avatar
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    I can't chime in on a 2015 model, but my 2008 had the same problem. After many trips to the dealer, replacing the fuel filter and pump and reflashing the ECU, ultimately replacing ALL the injectors is what fixed it. Of course, I had just over 37k miles on it at the time. It started happening with about 35k on it.
    I always used 93 in it and followed routine maintenance so who knows.

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    Registered User WPuckhaber's Avatar
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    Mine has 483 miles on it and has done it since day 1 .

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    Might also have something to do with the fuel filter.

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    Registered User Raven Logics's Avatar
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    Check some FXT forums - I'm am sure some 2014 FXT owners have experienced a similar problem.

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    Im a subaru service advisor. it sounds like an immobilizer problem. the security system cuts fuel if it doesnt recognize the correct key. it may be losing your key memory at times or maybe that particular signal is not getting where it needs to go. with out the car here it will be extremely hard to diag via the interwebz. this is a BRAND new car. fuel filters and pumps and everything should not be going bad. it sounds like a software or programming problem to me

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    Registered User WPuckhaber's Avatar
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    Quote Originally Posted by Epictofer View Post
    Im a subaru service advisor. it sounds like an immobilizer problem. the security system cuts fuel if it doesnt recognize the correct key. it may be losing your key memory at times or maybe that particular signal is not getting where it needs to go. with out the car here it will be extremely hard to diag via the interwebz. this is a BRAND new car. fuel filters and pumps and everything should not be going bad. it sounds like a software or programming problem to me
    Thanks for your reply .

    The first thing the tech asked is if I had one of the other keys on the ring when I drove the car . Nope

    This does not seem to be a common problem with the 2015 WRX's . They figured as did I that changing the main ECM would cure it but it did not , puzzling . So the immobilizer is a separate ECM of some sort not connected with the main ECM ?

    They did have one of the main techs in the Southeast look at the car and he is the one who ok'd the ECM swap . Sounds like they need to get him back here pronto .

    Again thanks for your reply and knowledge .
    Last edited by WPuckhaber; 08-01-2014 at 10:42 PM.

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