What do the codes
The Check Engine or Service Engine Soon light or an icon resembling the engine is technically called a Malfunction Indicator Light or MIL.
It comes on when your vehicle's computer detects a fault that can
affect your vehicle's fuel economy and the exhaust emissions.
are the five most common reasons your "check engine" light might come
on, and what you can expect to pay for the repair, including labor,
according to CarMD:
1. Faulty oxygen sensor
measures the amount of unburned oxygen in the exhaust and tells the
car's computer how much fuel is in the tank. If a faulty one is not
repaired, the car's gas mileage could drop, since the sensor is sending
incorrect information to the car. It costs less than $200 to repair.
2. Loose or missing gas cap
will often tighten the gas cap for free, or replace it for a few
dollars. If it's not replaced, gas will evaporate from the car and
decrease its gas mileage.
3. Broken catalytic converter
one isn't good news, since it can cost up to $2,000 to replace. The
catalytic converter uses a catalyst -most often a precious metal such as
platinum- to convert harmful gases left over from combustion to less
harmful emissions. CarMD says catalytic converters generally won't fail
unless a related part, such as a spark plug, malfunctions, so it's wise
to keep up with the car's maintenance schedule.
4. Malfunctioning mass air flow sensor
sensor measures the amount of air supplied to the engine, which
determines how much fuel should be delivered. When it malfunctions, it
can result in a loss of power to the car, surges during acceleration and
a decrease in fuel economy. It costs around $375 to fix.
5. Misfiring spark plugs
plugs are small but essential, since they make the car go by igniting
the compressed fuel in an internal combustion engine. Misfiring spark
plugs can affect engine power and fuel economy and can also damage the
catalytic converter. You can replace spark plugs yourself for as little
as $10 or pay $300 for a technician to do it.
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Oct 14, 2011 |
2001 Chevrolet Prizm