Reviews of DELPHI fuel filter

Fuel filter! I had the same on K9K 1.5 60kw

Fuel filter connectors or the filter itself is the issue, 100% confirmed it on my car.

Since my car is 2003 i found out that Delphi filter is a proper one as it has some sort of mechanism inside which is built properly unlike other brands such as Kamoka or Filtron.

Not sure what the thing inside is called but overall Delphi has OEM specs for the connectors and the rest.

Fuel filter would be my initial guess. Or maybe your air filter is so filthy that engine cannot suck air through it. So, check air filter first (filthy/not filthy) and if it is not that filthy, proceed with fuel filter.