Here are some possible reasons why your Mazda B2200 pickup dies when the gas is gone despite replacing the fuel pump, filter, and relay:
- Clogged fuel lines: Check the fuel lines for any obstructions or kinks that may restrict the flow of fuel to the engine. Make sure the fuel lines are properly connected and not leaking.
- Malfunctioning fuel pressure regulator: The fuel pressure regulator controls the amount of fuel pressure in the fuel system. If it is faulty, it may not be providing enough pressure to the fuel injectors, causing the engine to stall when the gas is low.
- Defective fuel injector: A faulty fuel injector may not be properly delivering fuel to the engine's cylinders, leading to stalling when the fuel level is low.
- Vacuum leak: A vacuum leak can cause the engine to run lean, leading to stalling when the fuel level is low. Check for any leaks in the vacuum lines and make sure they are properly connected.
- Faulty oxygen sensor: The oxygen sensor provides feedback to the engine's computer on the amount of oxygen in the exhaust. A faulty oxygen sensor may provide incorrect information, causing the computer to adjust the fuel mixture incorrectly, leading to stalling.
It's recommended to have a professional mechanic diagnose and fix the issue to ensure the safety and reliable operation of your vehicle.
