How do I fix error code P0171?

How do I fix error code P0171?

What repairs can fix the P0171 code?

1. Replacing the fuel pump.
2. Replacing the fuel filter.
3. Replacing the fuel pressure regulator.
4. Replacing the powertrain control module.
5. Replacing one or more injectors.
6. Replacing one or more oxygen sensors.
7. Replacing the mass air flow sensor.
8. Repairing a vacuum leak.

What could cause a P0171 code?

A plugged Fuel Filter or poorly functioning Fuel Pump can set the P0171 code. The computer hears (accurately) from the Oxygen Sensor that the Fuel Mixture is too lean so the computer keeps increasing the amount of fuel being delivered into the combustion chambers.

How much does it cost to fix code P0171?

What is the cost to resolve a P0171 code? This code will require a diagnostic check, which will run about $100 depending on the time it takes to find the issue. As there is a laundry list of reasons why the engine runs lean, the average price per repair will vary greatly.

Can a dirty air filter cause a P0171 code?

If the filter is clogged or excessively dirty, this is enough to impede or restrict the air flow, hence resulting in a lean running condition. Besides a dirty air filter, the P0171 code can also be blamed on a dirty or faulty MAF sensor and a clogged fuel filter.

How long can you drive with P0171 code?

It is okay to drive a vehicle with P0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage.

Can a dirty air filter make a car run lean?

In extreme cases, a contaminated air filter can turn on the check engine light. An extremely dirty air filter restricts engine air intake. This disrupts the air/fuel mixture inside the engine. As a result, the vehicle may experience performance problems that trigger the check engine light.

Which side of air filter is dirty?

With most pleated filters, the direction of air flow is critical . The dirt should not be accumulating on the metal mesh side of the media; if that is happening, you put it in wrong. Switch it. The mesh side is the back side ; the air should flow through the front side first.

Why is my air filter dirty after 3 days?

When the thermostat’s fan setting is set to “ON” the indoor blower will run 24/7, constantly circulating air over the air filter. So now the filter is constantly catching airborne contaminants, causing it to quickly get dirty.

Can Dirty air filters make you sick?

If the filter’s dirty, everything past the filter is dirty too, including the air you breathe. This pumps your home full of dust and allergens. Speaking of allergens, they can cause a number of physical symptoms like headaches, fatigue, tightness in your chest, and a mess of cold symptoms you may not be able to shake.

Can a dirty air filter make your house hotter?

#1: It Makes You Less Comfortable The filter stands between the intake air and your heating/air conditioning system. So a clogged filter will prevent air from circulating through the vents. In other words, you won’t have enough air to stay warm or cool!

Can a dirty air filter cause a fire?

When your furnace is working hard to pull air through, the dirty air filter could eventually get sucked back into the system. When this happens, air flow is compromised and you’re at serious risk of a fire starting at the furnace level.