The first thing is not to panic! You have to realize that this is your car's way of telling you that there's a problem and it might just be a loose gas cap, but could be more serious and costly. Even if your car is driving Okay, the problem wont go away and could get worse and cost you more to repair. To minimize further damage to your vehicle, diagnose the problem ASAP. Find the right diagnostic tool to diagnose the causes of your check engine problems yourself and find out what repairs should cost, so you can be in complete control of your car repairs. If not take the car to your Mechanic.
“Replace Oxygen Sensor”
The O2 sensor monitors the amount of unburned oxygen in the exhaust and tells your automobile computer when there is either too much, or not enough fuel.
So what’s it mean to you?
A faulty O2 sensor costs less than $200 to fix but can lead to as much as a 40 percent reduction in gas mileage if ignored.
“Replace loose, or missing gas cap”
It can be that it may just be loose so by simply tightening the gas cap by doing it your self (most caps of your car's era click when tightened -
What is you don’t do this?
But if left unchecked can result in a 0.5% decrease in gas mileage and harm the environment or the car's emissions.
“Replace catalytic converter(s)”
Most common car repair. A catalytic converter usually won’t fail unless a related part such as a faulty spark plug is ignored for too long.
This is a great example of why it’s so important to address small problems early.
A damaged catalytic converter
will cost $1,000 bucks or more to fix.
“Replace the Mass Air Flow Sensor”
The MAF sensor is responsible for calculating the air coming into your car and determining how much fuel to shoot into the engine.
When the mass air flow sensor is not working, it can lower MPG by 10 to 25% thus your overall car performance.
It costs about $375 to fix…
But is vital to saving dollars at the pump.
“The small but mighty spark plug”
Responsible for igniting a car’s air/fuel ratio, spark plugs are essential.
When they fail, they can cause a “misfire,” reduce gas mileage, and ultimately melt/ruin your catalytic converter.
If you do it yourself replacing a spark plug can cost under $10. Having it done by certified mechanic costs a couple hundred dollars, but can save you thousands later on.
How Do I Turn Off My Check Engine Light?
It is not recommended to turn off your vehicle’s “check engine light” until the pending problem has been identified and repairs confirmed. Doing so erases valuable information that may be needed to repair the car.
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