Computerized Engine Controls: Notes

S70 and V70 non-turbo models use a DENSO engine control system. See ENGINE MANAGEMENT SYSTEM IDENTIFICATION  table. System has complete self-diagnostic capability. Systems use a single Engine Control Module (ECM) that receives input from engine monitoring sensors. See INPUT DEVICES  . ECM uses these input signals to control air/fuel mixture for emission control, fuel economy and good driveability.

Model	Engine Type	Engine Management
S70 & V70 Non-Turbo	B5254S & B5244S	DENSO (SFI)