What does a p0170 mean on a PCM?
When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0170, indicating a problem or malfunction in the fuel trims. It may also have a P0173 referring to the same malfunction but on bank two. Symptoms of a P0170 DTC may include:
What does the p0170 code on a fuel trim mean?
What the P0170 code means. The P0170 code means that the powertrain control module is detecting a fuel trim that is outside the range of specification set by the vehicle’s manufacturer.
What are the symptoms of a p0170 DTC?
Symptoms of a P0170 DTC may include: Potential causes include a vacuum leak, unmetered air leaks Fuel saturated engine oil Leak in turbo air charge hoses (if equipped) Possibly bad O2 sensor (If Mercedes, may require adaptation with M-Benz compatible scan tool.) Oil contamination in MAF connector or O2 sensor connectors.
When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0170, indicating a problem or malfunction in the fuel trims. It may also have a P0173 referring to the same malfunction but on bank two. Symptoms of a P0170 DTC may include:
What the P0170 code means. The P0170 code means that the powertrain control module is detecting a fuel trim that is outside the range of specification set by the vehicle’s manufacturer.
Symptoms of a P0170 DTC may include: Potential causes include a vacuum leak, unmetered air leaks Fuel saturated engine oil Leak in turbo air charge hoses (if equipped) Possibly bad O2 sensor (If Mercedes, may require adaptation with M-Benz compatible scan tool.) Oil contamination in MAF connector or O2 sensor connectors.
When to use the error code p0170 on fuel trim?
If the signal from the O2 sensor means the engine needs less fuel, the PCM acts accordingly through a negative trim. If the O2 sensor says it needs more fuel, then the PCM will carry out a positive trim. Error Code P0170 is set when the PCM has detected an anomaly on fuel (fuel trim) that is outside the range of the vehicle’s specifications.
What is the OBD 2 fault code p0107?
OBD II fault code P0107 is defined as “ Manifold Air Pressure/Barometric Pressure Circuit Low Input”, and is set when the PCM (Powertrain Control Module) detects a signal from the MAP (Manifold Air Pressure Sensor) that falls outside of the expected value for the reigning engine load or throttle position,…
When to set the manifold absolute pressure sensor?
It is set when the PCM detects that the manifold absolute pressure (MAP) signal voltage is categorized as “too low”. Your car has a MAP sensor that measures the intake manifold’s pressure.
What are the causes of the p0170 code?
What are the causes of the P0170 code? Any condition that causes the engine to run lean such as a weak fuel pump, a clogged fuel filter, or a faulty fuel pressure regulator Any condition that causes the engine to run rich such as a mass air flow sensor, manifold absolute pressure sensor, or a faulty fuel pressure regulator
OBD II fault code P0107 is defined as “ Manifold Air Pressure/Barometric Pressure Circuit Low Input”, and is set when the PCM (Powertrain Control Module) detects a signal from the MAP (Manifold Air Pressure Sensor) that falls outside of the expected value for the reigning engine load or throttle position,…
It is set when the PCM detects that the manifold absolute pressure (MAP) signal voltage is categorized as “too low”. Your car has a MAP sensor that measures the intake manifold’s pressure.
Is there a p0170 fuel trim misfire code?
This code is one that surfaces with certain makes of automobiles more than others. In writing this article I’ve added Mercedes-Benz-specific info since it seems that M-B (and VW) are most prone to having this P0170 surface along with misfire codes or other fuel trim codes.