2013 BMW 535i v6 Only 60,000 miles Code: Cylinder 6 miss fire I installed a new spark plug in cylinder 6 and swapped Coil and spark plug 6 with...

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Customer

2013 BMW 535i v6 Only 60,000 miles Code: Cylinder 6 miss fire I installed a new spark plug in cylinder 6 and swapped Coil and spark plug 6 with Coil 1. Deleted codes: but continued to run rough for 2 days. Then engine light came back on and again code "miss fire on Cylinder 6. I took out cylinder 6 fuel injector but the seal at the bottom of the injector was missing. It was probably on it but slipped off during removal. So the question is can i replace just one fuel injector? And if so if that does not fix it what do i try next. Thanks

Last updated
Charles Totherow
BMW Mechanic

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Last updated
Charles Totherow
BMW Mechanic

The injector missing the cup or o ring will cause a vacuum leak and will give us a misfire for sure ,when you clear it might take few miles until the computer can not adjust A/F ratio anymore when it passes 25% adj and check engine light will come on and set code

 

and yes buy a new injector or they sell the o-rings and seal as a kit if you do not won't to repalce injector most likely injector still good

Posted
Charles Totherow
BMW Mechanic

If you have any follow up questions, please let me know using the send response button. If you are satisfied with my help, please let me know so we can complete your question.

Posted
Customer

Charles if i can just replace the orings will the car still run if i switch the enjectors around without changing the calabration? 

or if i replace an enjector with a new one will the car run until i can get it calabrated?  Do i even have to calabrate new enjectors. 

Thanks

Posted
Charles Totherow
BMW Mechanic

You dont have to calibrate them , i would just replace that injector and make sure it is seated right

after you drive it the dme will adjust fuel trim table

Sorry for taking ao long to get back to you

Posted
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