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jovonni31 jovonni31 is offline
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Default Code help - 01-16-2022, 10:10 AM

I have 2016 Bmw 340i 57k miles drives perfect until this am went to crank and it wouldn’t got this code after drivetrain malfunction , never moved the car as it didn’t start , 11AC02 high-pressure fuel system, cold start: pressure too low, is this a sensor or the pump , what’s the best way to start off doing first . Thanks


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jovonni31 jovonni31 is offline
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Default 01-17-2022, 09:54 AM

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Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 01-17-2022, 03:15 PM

I'm guessing the pump but it could be HPFP or LPFP as it's hard to tell on an N55 with no LPFP sensor. I'd log to verify the rail pressures first, then go from there.



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jovonni31 jovonni31 is offline
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Default 01-17-2022, 03:20 PM

It’s a b58 and it cranks but won’t start , I don’t hear the low pressure fuel pump coming in when I turn cer on and I checked the fuses on the paper in the fuse box in the trunk 104,149,150,151,165 are there other fuel fuse locations? Thanks for the response


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jovonni31 jovonni31 is offline
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Default 01-18-2022, 09:15 AM

I still don’t know what it is but called dealer low pressure pump is 640 bucks , any one know where to buy , I looked at a few places online but didn’t see for 340i just 335i , besides aftermarket pumps , what are some good websites for Bmw parts for 340i, guess I’ll do process of elimination start with the cheaper pump , looks like I’ll be car less for awhile . I know I can do the high pressure pump , but I never opened the gas tank before , under the rear passenger seat , not sure I want to


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jovonni31 jovonni31 is offline
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Default 01-25-2022, 12:01 PM

Pffff never mind I figured it out 1300 dollars later,


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Default 01-27-2022, 01:14 PM

Please share....



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