Fuel Gauge Increasing After Start Up

shaneguags · 03-28-2023, 09:55 AM

My fuel gauge has been increasing on start up and then goes down after I turn off the car. I also been having longer cranks, with even one startup failing. However, once started up, the car sounds healthy with no rough starts.

Anyone know what these issues could be ? I had it looked it before and they said they checked the passenger side floater and it was fine but think it’s the driver side floater that may need to be replaced.

These are the codes I am having as well (138104, 1st code is irrelevant due to FI exhaust). I’ve had no misfires and car feels fine when driving. the 213901 I believe is a low battery issue ? I been looking at getting a new antigravity battery soon.

Maybe the longer cranks are due to a low battery ?

shaneguags · 03-28-2023, 02:27 PM

I have a feeling it’s the fuel pressure regulator and fuel float sensor issue

-Eidos · 03-30-2023, 11:57 AM

I would check the LPFP or the bucket assembly

shaneguags · 04-04-2023, 09:39 AM

Quote:

Originally Posted by -Eidos

I would check the LPFP or the bucket assembly

yep, bringing it in on Wednesday. the shop said the bucket needs to be replaced.

shaneguags · 04-04-2023, 05:43 PM

also, just curious to how exactly this issue occurs ? is this common ?

03-28-2023, 09:55 AM	#1
shaneguags Major 1190 Rep 1,242 Posts Drives: 2017 Big Turbo BMW M2 Join Date: May 2021 Location: Tampa, FL iTrader: (0) Garage List 2017 BMW M2 [9.42]	My fuel gauge has been increasing on start up and then goes down after I turn off the car. I also been having longer cranks, with even one startup failing. However, once started up, the car sounds healthy with no rough starts. Anyone know what these issues could be ? I had it looked it before and they said they checked the passenger side floater and it was fine but think it’s the driver side floater that may need to be replaced. These are the codes I am having as well (138104, 1st code is irrelevant due to FI exhaust). I’ve had no misfires and car feels fine when driving. the 213901 I believe is a low battery issue ? I been looking at getting a new antigravity battery soon. Maybe the longer cranks are due to a low battery ? Attached Images
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03-28-2023, 02:27 PM	#2
shaneguags Major 1190 Rep 1,242 Posts Drives: 2017 Big Turbo BMW M2 Join Date: May 2021 Location: Tampa, FL iTrader: (0) Garage List 2017 BMW M2 [9.42]	I have a feeling it’s the fuel pressure regulator and fuel float sensor issue
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03-30-2023, 11:57 AM	#3
-Eidos @lbb_kev 491 Rep 514 Posts Drives: 2018 BMW M2 (LBB) Join Date: Feb 2020 Location: California iTrader: (0)	I would check the LPFP or the bucket assembly __________________ Speedtech Stage 3 (8474) \| Remus Exhaust \| Wagner EVO 3 \| XClutch \| DS2 + Lift Kit \| Nostrum S2 Injectors \| TI E5LM \| Torqbyte EKP \| Intrax 1K2 \| SPL \| Drexler GT Race Light LSD by limitedslip.de \| Schirmer Diff Lift Kit Full E85 DI-Only 717WHP Flex Fuel tuned by BendCalibration (ECUTek) \| Built by SD Garage
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04-04-2023, 05:43 PM	#5
shaneguags Major 1190 Rep 1,242 Posts Drives: 2017 Big Turbo BMW M2 Join Date: May 2021 Location: Tampa, FL iTrader: (0) Garage List 2017 BMW M2 [9.42]	also, just curious to how exactly this issue occurs ? is this common ?
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