what does fault code P0093 mean

Question

medium duty cab over isuzu truck with code P0093 what does it mean; truck goes into limp mode when engine light comes on;loses throttle response. thank you

Answer 1

the ecm detected a large leak in the fuel rail most common cause is a bad FRP (FUEL RELIEF PRESSURE) valve leaking down under normal driving conditions to check remove banjo fiiting and run engine accelerate motor to about 2000 RPM'S and see if fuel comes out of valve, be aware that disconnected tube is return so a lot of fuel is going to come out of tubing but no fuel should come out of valve

Answer 2

How do you fix a computer code Poo93?