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      04-21-2024, 02:36 AM   #1
HamboneN55
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Drives: x1 35i
Join Date: Apr 2024
Location: Portland Oregon

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Help Please, N55 Starts but shuts down Immediately....thoughts?

Hey guys! I have a 2013 x1 35i with the n55.
I have already replaced the low pressure fuel pump and fuel pressure sensor.
After doing so the car finally starts but the new problem is that it takes many attempts to get it to run. It starts then shuts down immediately, takes anywhere from 5 to 10 starts to get it to a rough idle but after that it smooths out and runs just fine. If I start it up within 30 mins to a few hours it starts up without much problem but if I wait the next day I have to repeat the whole process like the fuel has drained back down or its starving again.
The check engine light is on and it says "Engine Malfunction Reduced Power" though it doesn't feel like reduced power when I drive.
I have a blue driver code reader but it doesn't seem to be able to get me any codes.
Anyway with my very limited bmw knowledge and research up to this point it seems like it could be the hpfp.....Any thoughts or recommendations on what's wrong or thoughts? Also maybe a affordable code reader so I can figure out the codes on her?
Thanks for reading this and whatever you guys can contribute!

Last edited by HamboneN55; 04-28-2024 at 01:57 AM.. Reason: bad title
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