Usually caused by a sensor fault number four injector signal fluctuation maybe. Check and clean if required the connections to it and to the FIP.
Get the faults read it will be logged.
like i said i could read it all day and does not make any sense so if somebody could answer my earlier question would be appreciated?
Unless they have a crystal ball nobody can give you a difinative answer just guesses. Have the fault codes read, the fault that caused the light to come on will be logged in the system. That's about as sensible as it gets.
