According to the requirements of PVE proposed in the China 6 Emission Standard for light-duty vehicles. this paper compares a fault code respectively from cooling system monitoring. oxygen sensor monitoring and integrated component monitoring of Spark Ignition Engines. and analyzes the diagnosis principles and simulation methods under three engine control systems in detail. https://www.spidertattooz.com/Superdry-Organic-Cotton-Essential-Baseball-L-S-T-shirt/