Can a bad fuel pump cause engine light to come on?
Can a bad fuel pump cause engine light to come on?
Bad Fuel Pump, Fuel Pressure Sensor Can Trigger ‘Check Engine’ Light, P0087 Code. The light is part of your vehicle’s on-board diagnostics (OBD) system and can indicate anything from a loose gas cap to a major repair like a catalytic converter. Here’s another example of a problem that can trigger the light…
Where is the mass airflow sensor located on a car?
The mass airflow sensor is mounted towards the top of the engine, where it’s in the path of air that has just passed through the engine’s air filter. An incorrectly installed (or missing) air filter can damage the sensor by allowing harmful particles to make contact with it.
Can a bad mass air flow sensor trigger a check engine light?
Bad mass air flow sensor with no check engine light? Sometimes a mass airflow sensor can start to fail and even trigger engine error codes such as P0101 and P0102, without triggering a check engine light. There must be a problem with the mass airflow sensor circuit for the check engine light to illuminate.
What are the symptoms of a bad MAF sensor?
The symptoms of a bad mass air flow sensor include a car that is difficult to start, bad fuel economy, a rough idle, lack of power especially when accelerating and sometimes a fuel smell from the exhaust fumes. A properly functioning MAF sensor is vital for an engine to run efficiently.
What kind of air flow sensor do I need for my MAF?
Depending on the year and make of the vehicle, you may find different types of mass air flow sensors, from the old-style vane air flow meter to the modern era hot-wire mass air flow meter. Since hot-wire technology is the most widely used today, we’ll assume that your MAF is using that design.
How does the ho2s sensor work on a car?
This is done in order to see just exactly how rich or how lean the engine is running without the catalytic converters affecting the makeup of the gases in the exhaust. The upstream heated O2 sensors, or just HO2S accomplishes this by providing a 0 – 1volt signal to the PCM, with .5 volts as the crossover point.
Where to find the ho2s switch on a Ford?
Typically, it will be found close to, if not directly screwed into the exhaust manifold that cylinder 1 exhaust gases flow out of. Once located, visually inspect the connectors and wiring. Look for the obvious damage to the connector. Note any chafing, rubbing, bare wires, burn spots or melted plastic.
Bad mass air flow sensor with no check engine light? Sometimes a mass airflow sensor can start to fail and even trigger engine error codes such as P0101 and P0102, without triggering a check engine light. There must be a problem with the mass airflow sensor circuit for the check engine light to illuminate.
The symptoms of a bad mass air flow sensor include a car that is difficult to start, bad fuel economy, a rough idle, lack of power especially when accelerating and sometimes a fuel smell from the exhaust fumes. A properly functioning MAF sensor is vital for an engine to run efficiently.
