Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Dirty fuel injectors or fuel pump/filter › Reply To: Dirty fuel injectors or fuel pump/filter March 23, 2023 at 12:20 am #1024661 BillyParticipant How did you come to the conclusion that it’s a dirty fuel system? What are your fuel trims at idle, 2000, and 4000 RPM? Any CEL/codes?