N63 codes

Wht550jersey · 01-13-2021, 06:41 PM

I changed cylinder 4 injector from fcp 5 months ago , and got these codes coming up , just changed spark plug and coil also . Happens randomly under boost. Also just replaced both 02 sensors upstream . Have no cats

AnotherM · 01-23-2021, 12:16 PM

Quote:

Originally Posted by Wht550jersey

I changed cylinder 4 injector from fcp 5 months ago , and got these codes coming up , just changed spark plug and coil also . Happens randomly under boost. Also just replaced both 02 sensors upstream . Have no cats

Have you double checked the injector plug? They can be a pain to push all the way in.

Wht550jersey · 01-23-2021, 03:09 PM

Ya , the code started to jump from 4 to 1 . I'm thinking the hpfp is going and starving fuel

AnotherM · 01-23-2021, 09:17 PM

I had a ground right below the oil fill cap break and it caused all kinds of codes and misfires on 1-4, may want to double check the 4 ground locations on the wiring harness too

Wht550jersey · 01-24-2021, 02:56 PM

I'll check that thanks

01-13-2021, 06:41 PM	#1
Wht550jersey Private First Class 13 Rep 104 Posts Drives: 2011 550i Join Date: Oct 2019 Location: New jersey iTrader: (0)	N63 codes I changed cylinder 4 injector from fcp 5 months ago , and got these codes coming up , just changed spark plug and coil also . Happens randomly under boost. Also just replaced both 02 sensors upstream . Have no cats Attached Images Last edited by Wht550jersey; 01-13-2021 at 07:29 PM..
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01-23-2021, 03:09 PM	#3
Wht550jersey Private First Class 13 Rep 104 Posts Drives: 2011 550i Join Date: Oct 2019 Location: New jersey iTrader: (0)	Ya , the code started to jump from 4 to 1 . I'm thinking the hpfp is going and starving fuel
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01-23-2021, 09:17 PM	#4
AnotherM Cole 320 Rep 498 Posts Drives: 2016 m5 CP Join Date: Oct 2020 Location: AZ iTrader: (0)	I had a ground right below the oil fill cap break and it caused all kinds of codes and misfires on 1-4, may want to double check the 4 ground locations on the wiring harness too
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01-24-2021, 02:56 PM	#5
Wht550jersey Private First Class 13 Rep 104 Posts Drives: 2011 550i Join Date: Oct 2019 Location: New jersey iTrader: (0)	I'll check that thanks
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