[S6302850]

So my car went into limp mode randomly while it had about 1/8 tank of fuel, shut off the engine and restart, everything was fine, then same thing happened again after about 10 miles and recorded codes:

481B03 Motor current too low
110001 Cylinder injection shutdown: catalyst protection due to too low
pressure in the fuel system

Then I refueled to full tank, everything went ok, went home, erased the code.
Till yesterday the tank was about 1/4 full, same thing and same code happened again.

Google pointing me to 3 things: HPFP, LPFP, EKPS, though one of the post who had similar issue, said Dorch technician told him/her quote: "Reached out to dorch engineering and they were very positive HPFP is not the reason (quote “HPFP issues are non-binary and do not get resolved by simply clearing the memory”) and that it was likely EKP or LPFP suggesting I diagnose them somehow and replace either of them."
Source: https://*********************/thread...-vs-hpfp.8770/

I'm leaning toward replacing LPFP in the tank first as both time when it happened were at lower fuel level, and it's cheapest/quickest

Any suggestion/help is appreciated!!!

Thanks!

[Billfitz]

When you have more fuel in the tank the LPFP doesn't have to work as hard. But a clog in the system could be causing a vacuum situation in the tank, so you'd want to rule that out before swapping it out.

[StanleyXN]

Thanks for your suggestion! But any idea how do I rule out the clog? Ordered new LPFP which will arrive this Thursday, will for sure remove the old one so I can pop open the fuel tank and take a look.