Complete tuning and diagnostic solutionCommunicates with ECM and BCM to read, then clear diagnostic trouble codesActivates ABS solenoids for proper brake bleeding and testingIdeal tuning aid for Screamin' Eagle Pro Super Tuner (SEST), Dynojet Power Commander (PC) and Twin Tec Twin TunerIncludes all features of the standard twin scan unitsReal-time display of engine sensors along with built-in data logging with capability to store data for up to one hourIncluded PC software analyzes logged data, then displays front and rear cylinder AFR with the required volumetric efficiency (VE) using the same RPM rows and TPS/MAP columns in the Super Tuner tablesIncludes two analog inputs with 0-21 V or ± 200 V range as well as two-channel oscilloscope capability for waveform displayAnalog inputs can also be used for air/flow ratio (AFR)Complete Kit Includes:Twin Scan II ABS for models with J1850 data busTwin Scan IV for models with CAN data bus with six position DLC connectorWEGO IIID for tuning capability with both twin scan versionsTwin Scan III probe kit for use with the scopemeter feature of the twin scanTwo Bosch LSU 4.2 wide-band oxygen sensorsTwo 18 mm x 1.5 weld nutsTwo 18 mm x 1.5 hex socket plugsUSB cableCD-ROM with softwareRequires use of a PC with Windows 7/8/10/11 for display.