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Based on the engine dual-parallel ECU system platform test platform, carried out on the original P-ECU parameter information real-time acquisition system research and development. In the condition of the P-ECU control engine normal operating, the DAQ function of the P-ECU provided by the CCP protocol is enabled by the V-ECU, and the P-ECU internal parameters are accessed and used flexible and in high-speed. The experiment shows that the system can meet the optimization requirements of the engine ECU control algorithm and can improve the optimization efficiency remarkably, and lay the foundation for continuously optimizing the V-ECU internal self-developed control algorithm to make the V-ECU to achieve the original P-ECU level in engine control.