Hello All,

New member here with a question regarding multiple fault codes on my daughters 2005 Volvo XC90.
7 Fault codes in total all saying “Signal too low”
Fault code are : 616D CAMSHAFT RESET VALVE. EXHAUST
612D CAMSHAFT RESET VALVE. INTAKE
600D TURBOCHARGER CONTROL VALVE
421D CANNISTER PURGE VALVE
432D LEAK DIAGNOSTIC UNIT. VALVE
432D LEAK DIAGNOSTIC UNIT. PREHEATING
432D LEAK DIAGNOSTIC UNIT. PUMP
Anyone have any experience with these same codes popping up and any known fixes? Also the engine has a rough idle and is down on power.
All help much appreciated!

GILES