1. Smoke, if the pump has just begun to run a smoke phenomenon, is normal, if the smoke is not normal for a long time. The solution: smoke shows the pump inlet, including pipes, valves, containers are repaired. Leakage after treatment, the smoke will end. Vortex flowmeter 2. Fuel injection, indicating a large number of leaks outside the air intake, or even the air inlet exposure to the atmosphere. Solution: seal the pump inlet to run the pump, if not fuel injection, indicating a leak; exhaust valve damage, check the exhaust valve is damaged, replace the bad exhaust valve. Fuel Metering Valve,Petrol Fuel Meter Valve,Auto Fuel Metering Valve,Common Rail System Fuel Injection Guangdong Heidler Technology Co., Ltd , https://www.hyhemit.com