Home >> Volvo >> 1998 >> S70 GT, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> DTC P0201/EFI 115, DTC P0202/EFI 125, DTC P0203/EFI 135, DTC P0204/EFI 145 & DTC P0201/EFI 155 >> Possible Causes (Signal Missing)