How to replace EGR waste gas valve in mazda 6

The disassembly and assembly procedure of EGR waste gas valve in mazda 6 of Pacific Auto Network is very complicated. You need to remove the air filter first, and then unplug the connected pipes and plugs. The most difficult part is the screw under the intake manifold, which is difficult to remove without special tools. In addition, after the EGR waste gas valve is reinstalled, it needs to be equipped with a computer, and it needs to be repaired and replaced in a professional auto repair shop.

EGR valve, also known as exhaust gas recirculation valve, is a mechatronics product installed on diesel engine to control exhaust gas recirculation of intake system, and it is a very important and key component in exhaust gas recirculation device. Its function is to control the amount of exhaust gas entering the intake manifold and make a certain amount of exhaust gas flow into the intake manifold for recycling.

The failure of EGR valve is mostly due to carbon deposition and blockage in the passage, so the EGR valve should be cleaned or replaced in time to ensure the normal operation of the engine. Cleaning EGR valve with carburetor cleaner can remove carbon deposits in intake, throttle and EGR valve. For the connecting pipe between EGR valve and air inlet, the pipe is slender and curved, so it can be sprayed with cleaning agent to burn it, and then gently knocked out after natural cooling. (Photo/Text/Photo: Pacific Auto Network Guo Shanshan-Part-time)