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|  | Home > Technical > Cracks over but wont start up | 
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| Sl0wM0Beagle Member Since: 08 Jan 2022 Location: West Sussex Posts: 13      | 
 Hi
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|  29th Jul 2023 10:00 am | 
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| IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3505      | Battery?
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|  29th Jul 2023 10:30 am | 
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| SYFL2 Member Since: 16 Jun 2012 Location: Sheffield Posts: 2640    | I really don’t know but if it were me I would try the old disconnect the battery for a bit trick. | ||
|  29th Jul 2023 10:31 am | 
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| jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 5567      | 
 
 Its not the battery as it cranks over really well. Not CPS as its actually cranking. Probably a fuel issue. You need to read error codes. OH HANG ON - YOUR FUEL TANK IS EMPTY !!! Jules | ||
|  29th Jul 2023 12:02 pm | 
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| Grimdog Member Since: 08 Sep 2020 Location: Wakefield Posts: 347      | 
 
 At the end of the video, when the engine stops cranking, the fuel gauge goes up to just short of full. | ||
|  29th Jul 2023 2:33 pm | 
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| IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3505      | The presentation of this FL2's problems remind me of the live exercises we had to complete when training as a Project Manager. They were slightly misleading and were designed to force trainees to search for the full facts before jumping to conclusions.  -----I seem to be failing on this problem!!-----
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|  29th Jul 2023 5:04 pm | 
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| Nodge68 Member Since: 15 Jul 2020 Location: Cornwall Posts: 2175    | Cranking without starting could be many things, some of which would need live data from a suitable diagnostic tool to see what is happening. 
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|  29th Jul 2023 9:03 pm | 
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| jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 5567      | I thought that if the CPS has failed then it wont even crank. Jules | ||
|  29th Jul 2023 9:26 pm | 
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| pab Member Since: 28 Aug 2012 Location: Now in Mid-Wales Posts: 2007      | Nope, it’ll crank but not start. Guess how I know…!
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|  30th Jul 2023 9:37 am | 
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| Rommel Member Since: 20 Aug 2017 Location: Sandhurst Berkshire Posts: 792      | Could it possibly be the transfer pump in the tank ?? as its showing empty then goes up to full at end of cranking? 2013 FL2 XS. 
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|  30th Jul 2023 9:44 am | 
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| IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3505      | The fuel gauge actions certainly look dodgy to me but as I have a later FL2 I cannot do a live check.
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|  30th Jul 2023 11:43 am | 
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| Nodge68 Member Since: 15 Jul 2020 Location: Cornwall Posts: 2175    | 
 If the ECM thinks the tank is empty, it will prevent starting to prevent damage to the HP side of the fuel system. Hyundai Ioniq 5 Ultimate. The family car. 2009 Rimini Red SE TD4. Gone. 2006 Tonga Green i6 HSE. Gone. Audi A5 convertible, the daily driver. 1972 Hillman Avenger GT, the project. | ||
|  30th Jul 2023 12:35 pm | 
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| Grimdog Member Since: 08 Sep 2020 Location: Wakefield Posts: 347      | [quote="IanMetro"]The fuel gauge actions certainly look dodgy to me but as I have a later FL2 I cannot do a live check.
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|  30th Jul 2023 12:43 pm | 
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| Nodge68 Member Since: 15 Jul 2020 Location: Cornwall Posts: 2175    | My fuel gauge reads the volume of fuel in the tank, regardless of cranking over or running. Hyundai Ioniq 5 Ultimate. The family car.
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|  30th Jul 2023 3:51 pm | 
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