Hi guys. My sdv8 tends to throw P0088 code which ends up with limited performance everytime i hit full throttle to overtake. I've searched through many other threads in regards of this subject and only found other members having P0088 on start up. Well mine isn't the case here. It drives well on most occasions but when I floor it to overtake it will throw high fuel rail pressure code. I doubt it's the wiring harness giving bad signals. It feels like I'm getting some blockages in the system instead. Can members here advise me how does the fuel system work in the L405 SDV8?

Does it go to the rails first > fuel filter > fuel cooler >back into the tank?

Trying to figure if I have a congested fuel filter. Couple weeks ago I had the entire engine and transmission out to change all seals, mounts, bearing and hoses. 1 of service item was the fuel filter. However I've only found that the OEM filter measures 2mm shorter than the original after an initial start up (hence leaking) and I had no choice but to reuse the old filter temporarily as shops are closing for a week holiday here. Before I started this process the car ran fine. I'm unsure if the old filter somehow developed a clog after it was exposed to air for 2 weeks when I was putting everything together.

Appreciate some pointers.. Thanks