So Ive been getting a spanner light appearing briefly every so often, plugged it into laptop today, Ive got one error code, P1191 - Fuel Pressure System Malfunction.. Garrrr.. Car is running ok though... Its an 05 z22yh Vectra.. It has original regulator and pump on by the looks of it.. Am I right in thinking my first job should be to get the fuel regulator replaced? And am I also thinkiing correctly that a VX dealer should do that free of charge for me, even though my car is 5 years old??