My Check Engine Light Is On and I'm Not Sure Why

My Check Engine Light Is On and I'm Not Sure WhyWhile an illuminated check engine light doesn't automatically mean that a catastrophe is near, you'll still want to be proactive about getting your vehicle to the shop for diagnostics so that the issue doesn't worsen, potentially leaving you with a repair bill that is much more expensive than it needed to be. Here's a look at six common reasons a check engine light turns on.

Faulty Mass Air Flow Sensor

The air flow sensor keeps tabs on incoming air and then calculates how much fuel should be injected with it. If this is the source of your check engine light coming on, it shouldn't be too costly to remedy.

Bad Catalytic Converter

This, on the other hand, is an issue that can be rather spendy. Nevertheless, it's a problem that'll need to be quickly addressed because of the catalytic converter's important job, which is to turn carbon monoxide into an emission that is less harmful to the environment.

Failing Oxygen Sensor

This monitors the amount of unburned oxygen that's in your exhaust system. Trouble with the oxygen sensor can result in worsening fuel-efficiency, as well as problems with the catalytic converter.

Faulty Ignition Coil

This works to create the spark that is needed for your engine to fire up on all cylinders. Sometimes, extreme weather temperatures can cause ignition coils to fail.

Bad Battery or Charging System

When a battery is failing, it can lead to low voltage at the computer, which can consequently trigger the check engine light.

Poorly-Fitting Gas Cap

If your gas cap is loose or ill-fitting, it can result in fuel evaporating before you even get the chance to use it---and can also actually cause the check engine light to turn on.

If you're in need of auto repair, be sure to visit a reputable auto shop. For check engine light diagnostics and repair in Green Bay West, the experts to contact are at Auto Select at (920) 494-4936. Feel free to give Auto Select a call today to schedule an appointment for any of your repair or maintenance needs!

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Written and Published By MORBiZ