What diagnostic test can highlight injector performance issues?

The injector flow rate test is an essential diagnostic tool specifically designed to assess the performance of fuel injectors. This test measures the amount of fuel that each injector can deliver under specified conditions, allowing for direct evaluation of their efficiency and functionality.

A properly functioning injector should deliver a consistent and accurate flow of fuel, ensuring that the engine runs smoothly and efficiently. If an injector is clogged, leaking, or failing, the flow rate will be affected, which can lead to poor engine performance, misfires, or increased emissions. By performing this test, technicians can identify underperforming injectors that need cleaning or replacement, ensuring optimal engine operation.

While other tests, such as compression tests, oxygen sensor tests, and fuel pressure tests, can provide valuable information about engine performance and help diagnose various issues, they do not specifically target the performance of the injectors themselves. Thus, the injector flow rate test stands out as the most direct method for identifying injector-related issues.