How does the EGR valve work?ĮGR is a mechanism that permits combustion gases to be reintroduced into the intake manifold after being removed. As a result, the EGR valve is fully closed when the driver desires the most torque. The opening and closing of these valves can be accomplished in less than 100 milliseconds. With a DC electric motor instead of an electro pneumatic drive, EGR valves can respond more quickly. In today’s modern engines, the electronic engine control unit (ECU) is in charge of nearly all of the engine’s electrically driven valves. The electronic part of the EGR was protected from overheating because to this drive design. NOx emissions are reduced as a result of this method.Įlectro-pneumatically operated EGR valves were the first to be manufactured. What is Exhaust Gas Recirculation or EGR?Īs a part of a car’s EGR system, exhaust gases are circulated into the intake to lower the combustion temperature, reducing emissions. OBD error codes for the EGR cooling Valve.Exhaust Gas Recirculation Cooling Valve diagnosis.What can I do if the EGR valve is stuck?.What problems can a stuck EGR valve cause to the car?.What is Exhaust Gas Recirculation or EGR?.
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