How many sensors are there in an electronic fuel injection system?
How many sensors are there in an electronic fuel injection system?
There are 2 types of O2 sensors, standard and wideband. Both tell the ECU if the Air/Fuel Ratio is correct. A standard O2 sensor sends either a rich or lean signal to the ECU. A Wideband or Air/Fuel (A/F) oxygen sensor can tell exactly how much oxygen is in the exhaust.
What sensors affect engine timing?
The manifold absolute pressure (MAP) sensor measures intake vacuum, which the PCM also uses to determine engine load. The MAP sensor’s input affects ignition timing primarily, but also fuel delivery. Knock sensors are used to detect vibrations produced by detonation.
When do you need to replace the fuel pump regulator?
You only need to replace a fuel pressure regulator if it’s failed. Simple fuel pressure testing will determine that. Pump puts out 55-60 psi and regulator knocks it down to 30-ish. If PSi post-regulator is higher than 32-34, than regulator is bad.
How do you clean a fuel pressure regulator?
Remove the mounting hardware from the fuel pressure regulator. Take the fuel pressure regulator off the fuel rail. Step 4: Clean the fuel rail with a lint free cloth. Check the condition of the vacuum hose from the engine manifold to the fuel pressure regulator.
Can a bad fuel pressure regulator cause poor fuel economy?
There are other factors that can contribute to the reduction in fuel economy. For example, leaks in the fuel delivery system can also be a cause of poor fuel economy. Whatever the case, a reduction in fuel efficiency is always a sign of a bad fuel pressure regulator.
Where is the fuel pressure regulator located on a Harley?
Has anyone else replaced a fuel pressure regulator on your ’01 or later touring where the regulator was located under the tank rather than inside? Before I attempt this job I was looking for any tips, tricks, or hints to make the job smoother.
How to remove and install fuel pressure regulator?
A check of the fuel pressure regulator, as well as the removal and installation process is demonstrated in this video. Buy this part here: This regulator automatically cuts off the flow of fluid in the event pressures reach a certain threshold. MattHumanPizza is not responsible for anything anybody does to their vehicular transportation. Loading…
Can a bad fuel pressure regulator cause poor acceleration?
A bad fuel pressure regulator can also lead to poor acceleration. This is one of those symptoms that many vehicle owners will first notice from their car. As they step on the gas pedal, the car does not accelerate in a more normal manner. It is sluggish.
Can a fuel rail pressure sensor be replaced?
If you have some mechanical experience, replacing the fuel rail pressure sensor is a good DIY candidate. Note: Do not confuse the fuel rail pressure sensor with the fuel tank pressure sensor.
Can a fuel pressure regulator leak into the vacuum hose?
Presence of Fuel in the Car’s Vacuum Hose. One of the fuel pressure regulator symptoms that one should never ignore is the presence of fuel in the vehicle’s vacuum hose. This is an automotive component that connects to one side of the fuel pressure regulator. If there is a problem with the regulator, fuel can leak into the vacuum hose.
