Fitted new modified cam sensor and multi plug cleared all codes inc KAM was ok for 1 day then sudden cutting out whilst driving will start up immediately then again a few minutes later code in Kam were PO251 inj pump metering and P1211 inj press sensor above/below desired. the only thing i have noticed is a rattle from the flywheel area (dual mass breaking up)which happens upon eng start and stop untill the clutch is dipped then the rattle stops. My question is the flywheel should not throw up codes for inj system ???or is it poss ghost codes??? TIA john