What do I check first when I get error code P1356 on a 2007 Dyna Custom?

Question edited for clarity.
Question moved to model category.

New upgraded Injectors are here

https://www.google.com/search?q=2005++dyna+super+glide+custom+injector

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Duplicate question already answered

Duplicate question already answered

Check for error's code on speedometer" Diag mode", then go on internet for this error code !

Duplicate question already answered

Perhaps you should ask on the Harley forums, a please wouldn't go amiss, you might get a better response.

Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Harley, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at [email protected]. Good luck and have a wonderful day.
https://www.motorcyclespecs.co.za/model/h-d/harley_davidson_fxdc_dyna_super%2007.htm
http://www.mediafire.com/file/6cp9fbatnw1z4di/2005+Harley+Dyna+Service+Manual.pdf
https://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
https://ownersmanuals2.com/harley-davidson/dyna-super-glide-custom-2005-owners-manual-66388
https://www.6ya.com/ to speak to me personally

it wont as the lock locator will be out of line on the frame ! tighten up lock should sort !