A faulty PT injector can cause a range of performance issues. Key symptoms to watch for include: Hard Starting or Misfiring: A weak injector spring or worn parts can fail to create proper injection pressure, leading to poor atomization and difficult cold starts. Excessive White or Black Smoke: White smoke indicates unburned fuel, often from dribbling injectors that don't seal...

The name "PT" stands for Pressure-Time, which is the fundamental principle of its operation. Unlike common rail systems that use high-pressure pumps to "push" fuel into the cylinder, the PT system is a "pull" system based on flow. Here’s a simplified breakdown: Fuel Flow: The PT pump delivers fuel at a low pressure (typically 5-20 psi during cranking and up to...