What happens when you pump the gas pedal before starting the car?
For starting & idling there is also a computer controlled idle air control valve. So the computer does do everything you used to do with your foot. At this point, pumping the “air” pedal before you turn the key does nothing. You might as well wave chicken bones over the ignition.
What happens when you hit the gas pedal at the last light?
You’re running a little late, but sitting in pole position at the last light before hitting your employee parking lot. So when the stoplight turns from red to green, you punch the gas pedal, hoping to sail through the intersection a little, um, faster than usual. But instead of moving when you hit the gas pedal, your car hesitates.
What happens when you push the accelerator pedal?
Pushing the pedal did three things: it “primed” the engine by using the accelerator pump to spray some fuel in it set the automatic choke it set the idle to high, via the high idle cam. Fuel injected systems control the engine’s starting fuel needs by computer.
Why does my caravan not run when I hit the gas pedal?
If there is power past the relay, then there could be a break in the wiring between the fuel pump relay and the fuel pump. If the fuel pump is working properly and you have good pressure, then the issue would be with the throttle pedal position sensor (located on the gas pedal). You can try to resetting the sensor by the following:
What happens when you hit the gas pedal before starting the car?
Hitting the gas pedal before starting would also activate the automatic choke if the car had one. On the old carbureted engines, you pressed the gas pedal before starting to set the choke position and give a squirt of fuel into the engine via the accelerator pump.
Pushing the pedal did three things: it “primed” the engine by using the accelerator pump to spray some fuel in it set the automatic choke it set the idle to high, via the high idle cam. Fuel injected systems control the engine’s starting fuel needs by computer.
What happens when you pump the gas before turning the key?
Fuel injected systems control the engine’s starting fuel needs by computer. Eraser gave an excellent description of a majot difference, being that pumping the pedak before turning the key does nothing on a fuel injected car but open and close the throttle plate.
Can a faulty fuel pump cause a car to not start?
Faulty fuel pump: The fuel pump moves fuel from the gas tank to the engine. If the fuel pump is malfunctioning, the engine will be getting less fuel than necessary, which will lead to performance issues, and ultimately cause the vehicle not to start.