Hi, my name is***** your mechanic automotive expert, and I will be happy to assist you today. In some cases, I may need more information to assist better. I apologise for any delay.
I try to be here most weekdays and some weekends. If you respond and I do not respond back right away I will do so as soon as I can.
Dear customer, let me explain with the error code and the diagnostic equipment you are using, you will not be able to find the sensor, what happens is that you are using an incorrect diagnosis, first of all because the p0001 code is simply talking about a problem in the fuel pressure, but it is not telling you if it is really a problem with the filter pump of some injector or some component of the injection system because this is a generic error code, it is an error code that generates the code readers to refer to a problem in the fuel pressure but to be able to find out precisely what the problem is, you need to make a diagnosis with a suitable equipment that has a software for Volkswagen as an Vagcom equipment, those are the adequate equipments to carry out these diagnoses.
So it simply throws you the code P0001, which tells you about a problem of fuel volume but it is a very generic code or a very open code is not precise.Then with this code, to avoid unnecessary expenses no kind of repair can be performed.
What I could recommend is since your Polo is 2015, if you do not have access to more advanced diagnostic equipment, proceed by to perform maintenance on the injection system, replace the filter, clean the pump, bleed the injection system because it may simply be a warning that maintenance is soon to be needed,