Can a bad valve cover gasket cause P0171?
To answer what you really want to know is if a cracked valve cover will cause lean codes, the answer is yes, a cracked valve cover or poorly installed gasket will cause lean codes, along with the broken SAP pipes and many other that can get cracked, broken or damaged when replacing a valve cover gasket.
Can a bad valve cover gasket cause check engine light?
As oil leaks from the valve cover gasket, it leaves the oil pan. When this happens frequently, it can cause the Engine Oil Light to appear on your dashboard. If the engine oil is low, it will reduce its ability to properly lubricate internal engine components.
Can I drive my car with code P0171?
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.
What does the p0171 code on the O2 sensor mean?
If it’s a long-term mixture, it can register the code because of a small notice of lean mixture over time. The P0171 code means that the front O2 sensors have recognized a lean mixture. The front O2 sensors are adjusting the fuel mixture that is coming out from the engine.
When to use lean condition code p0171?
Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered.
What does p0171 and po174 mean?
A continual low voltage reading indicates a lean fuel mixture, too much oxygen. The optimal ratio is 14.7:1 (air:fuel). When your powertrain/engine control module receives a reading that indicates there’s too much oxygen and the ratio is incorrect, it sends an error code P0171 or P0174.
Is it okay to drive a car with p0171?
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. It is important to complete the entire diagnostic process when diagnosing P0171.