How to repair Omar egr valve data that is valid but lower than normal?

It can be repaired by cleaning or replacement.

1. If you want to clean the egr valve, it is recommended to use carburetor cleaner. The most important thing is to clean up all the carbon deposits in egr valve, throttle valve and intake port.

2. It is very difficult to clean the connecting pipe between egr valve and air inlet, because this pipe is very thin and has many bends.

3. If it does not affect the cleaning of egr valve, it is suggested to replace it with a brand-new egr valve to avoid affecting the normal operation of the engine.