What are the common problems on injection pump?

Common problems with injection pumps include poor fuel delivery, which can lead to engine misfires or rough running; leakage of fuel, often due to worn seals or gaskets; and issues with the pump timing, resulting in inefficient fuel combustion. Additionally, contamination of the fuel system can lead to clogging or damage to the pump components. Regular maintenance and timely repairs are crucial to prevent these issues and ensure optimal engine performance.