08-24-2022, 05:19 AM | #1 |
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BMW Tuning
Hello, I have a BMW X3 F25 and in this car the previous High Pressure Fuel Pump was damaged due to some dust particles and I have changed the HPFP to a upgraded HPFP along with the upgraded injectors and everything. But now the car doesn't start and is shows a warning "249300 : Rail pressure monitoring on engine start: Rail pressure too low during engine starting". But when I disconnect the fuel monitoring socket from the HPFP then car is able to start and then it shows another error code "250100 Fuel quantity control valve activation : Open circuit". So can anyone help me increase the fuel pressure required for this upgraded High pressure Fuel pump.
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08-25-2022, 02:35 AM | #3 |
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09-20-2022, 01:01 PM | #4 | |
Check out my Youtube @n55david!
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Drives: 2017 m240i, 2015 X3 x35i
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What hpfp and what injectors?
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