ECU/EMS

OPERATION PARAMETERS

EMS SCHEMATIC

SENSOR LIST

CONTROL SYSTEMS

Standard ECU Systems

Power-train Control Module [PCM] SENSOR INPUTS: MAF/MAP- Intake air density VR TACHO- Engine RPM CR POS- Crankshaft Angle IDLE SET-Idle Speed THROTTLE POS KNOCK TRANSMISSION ECU CONTROL OUTPUT: A/F Ratio- Inj. Timing/Pr Ig. Timing Idle Speed Set VVT Transient Fueling Gear Control Ig. Cutoff Rev Limit Turbo Waste-gate limit

ADVANTAGES Ease of Control Adaptable to multiple scenarios Very low cost compared to mechanical systems Occupy lesser space-compact engine bay Less complicated design Zero wear

UNIQUE FEATURES SERVICE SETTING: List of service parameters Range of acceptable values OR time limits (modifiable) Service Indicator Light Program reset OBD- On Board Diagnostics Self detection of possible faults Sensor scanning subsystems Fault codes stored in ECU memory All cars after 1996 OBD-II compliant

AUTO TUNING Software on ECU known as a map New maps can be loaded to ECU [ process known as re- mapping or flashing] Complete access to parameters such as fuel injection quantity, boost pressure, ignition timing, idle speed setting No costly equipment required, laptop, Tuner EMS s/w & ODB cable Plug & play ECU’s with multiple maps available.