What is a three-way catalytic converter? A three-way catalytic converter is the most important external purification device installed in a car's exhaust system, which can remove CO from the car's exhaust Harmful gases such as HC and NOx are converted into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Simply put, they purify the exhaust gas. The working principle of a three-way catalytic converter is as follows: 1. When the engine exhaust gas is discharged through the exhaust pipe, due to the catalytic effect of the purifying agent in the three-way catalytic converter, the activity of C0, HC, and NOx is enhanced, leading to oxidation and reduction reactions. 2. C0 is oxidized to colorless and non-toxic C02 at high temperatures, HC compounds are oxidized to H20 and C02 at high temperatures, while NOx is reduced to N2 (nitrogen) and 02 (oxygen), thereby purifying the engine's exhaust emissions)
Method for installing a three-way catalytic converter: ① Use 8 bolts to install 2 heat shields on the new preheated three-way catalytic converter. ② Install the new gasket, protective ring, and sealing gasket onto the preheated three-way catalytic converter. ③ Use 3 bolts and 2 new nuts to install the preheated three-way catalytic converter with a tightening torque of 29N. m. ④ Use bolts and nuts to install the exhaust manifold bracket with a tightening torque of 42N. m. ⑤ Use bolts and nuts to install the No.1 exhaust manifold bracket with a tightening torque of 42N. m. ⑥ Connect the secondary oxygen sensor connector
From the appearance, the Qiyun 31.8CVT test car is no different from the current Qiyun 3, and the main focus of judgment errors is on the engine. After all, the largest sales main model of the Qiyun 3 is a 1.5L displacement, which ignores the existence of 1.8L. In fact, from the perspective of the engine itself, it is indeed easy to achieve quick matching. Firstly, the Ruiqi G3 1.8CVT arrow has been wound up and is only waiting for market sales, while the Ruiqi G3 itself is interconnected with the Qiyun 3 in terms of suspension, There is only a difference in curb weight, so the significance of testing is to adjust the ECU based on the weight of the Qiyun 3 itself, and the adjustment range will not be too large
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