WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM TELEMATICS SUPPORT Hardware and software capability exist in the full authority 4G control system to send and receive CAN communication files in a structured message format. The input and output file structure and variable content need to be defined by the customer and implemented by WEICHAI. There will be an engineering change associated with setting up the file structures and debugging the communications with the telematics module. Equipment and technical support is available from Weichai.
Diagnostic Messages The 4G engine control system contains a highly configurable diagnostic list that can be tailored to each application’s specific needs using the calibration spreadsheet. With each available P-code listed along with the short-name description. Note that not all DTCs necessarily apply to every application. ECM: Engine Control Module: 4G 90 pin The ECM is full authority, by this we mean it includes the ignition and air/fuel ratio control, contains all the I/O to interface the engine with the application and has a complete set of diagnostics. By implementing all functions in one box the overall system complexity is reduced as is the total system cost.
Some of features included in the ECMs are, lean burn or stoichiometric combustion control, continuous fuel injection control or standard digital injectors, ignition control electronic boost control for turbochargers – VGT or wastegate, drive-by-wire throttle control, oxygen sensor based closed-loop air/fuel ratio control (wide band (UEGOs) or switching (HEGOs)), adaptive spark and fuel control, EGR control, transmission / engine coordination, speed control/governing (idle, max speed, all-speed, cruise control) and vehicle network interface systems (CAN, J1708, J1850, Ford SCP). DEPR:
Direct Acting Electronic Pressure Regulator Our fuel control device is referred to as a Direct Acting Electronic Pressure Regulator or D-EPR shown as in Figure 2. Its benefits to our customers and the end customer are: WEICHAI EMISSION-RELATED INSTALLATION INSTRUCTIONS GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM