

The ECU is the vehicle's main computer. It makes many adjustments based on inputs it receives from various sensors. If it is defective, the engine systems, such as fuel delivery, may not run properly
The flywheel maintains engine momentum during non-power strokes. If it fails in this respect, the engine will have difficulty continuing to turn and may stall shortly after starting. The flywheel also
The fuel gauge displays the amount of fuel in the fuel tank. If the gauge is defective, it will display the in correct level of fuel.
Defective wiring in the fuel gauge can prevent it from reading or displaying the fuel level.
A defective fuel injector will be unable to deliver fuel to the combustion chamber. The engine will lose power and can eventually stall.
A defective fuel pressure regulator will be unable to maintain proper fuel pressure during varying engine loads.
A defective fuel pump may be unable to draw any or enough fuel from the fuel tank for proper engine operation.
A mechanical gas cap release employs the use of a cable to open the gas tank cover. If the cable is worn, loose, or detached, the release lever will not be able to open the cover.
An electronic gas cap release uses a solenoid to convert electric current into the motion of opening the cap. If the solenoid is defective, the electric current may still pass through, but the gas cap
An electronic gas cap release is triggered by a switch. A malfunction in this switch will prevent the signal to open the cap from being transfered to the solenoid.