What causes a check engine light to illuminate?


What causes a check engine light to illuminate?The illumination of the check engine light doesn't automatically mean that disaster is looming. Nevertheless, you'll want to get your car to the shop for diagnostics so that you don't risk the problem worsening to the point that you need major repairs that could've been prevented. Here's a look at six common reasons that a check engine light turns on.

Failing Mass Air Flow Sensor

The mass air flow sensor keeps tabs on the amount of incoming air and calculates how much fuel to inject with it. Fortunately, this is an issue that is typically not very expensive to take care of.

Faulty Catalytic Converter

A failing catalytic converter, however, can cause a significant dent in your wallet. Still, it'll need to be addressed because of its important task, which is to turn carbon monoxide into an emission that is less polluting.

Failing Oxygen Sensor

Oxygen sensors monitor the quantity of unburned oxygen in the exhaust system. Trouble with them can consequently lead to a reduction in gas mileage, as well as problems with the catalytic converter.

Bad Battery or Charging System

When a battery is failing, it can result in low voltage at the computer, which can then cause your check engine light to come on.

Faulty Ignition Coil

Ignition coils play a crucial role in getting vehicles to come roaring to life on all cylinders. They will sometimes fail due to extreme weather conditions.

Loose/Missing Gas Cap

A missing or ill-fitting gas cap can result in fuel evaporating before you get the chance to use it. Strangely, this is an issue that can actually trigger your check engine light.

If you're in need of engine repair, be sure to visit a reputable specialist. For check engine light diagnostics and repair in Forest Acres, Pine Valley, and Columbia, SC, the experts to contact are at Team 1 Automotive at (803) 828-0217. Feel free to give Team 1 Automotive a call today to schedule an appointment for any of your repair or maintenance needs!


Team 1 Automotive Blog

Written and Published By MORBiZ