What problems can trigger a check engine light?

While there is reason to be concerned when the check engine light illuminates, this doesn’t necessarily mean that your vehicle is about to go kaput. Regardless, it’s best to be proactive about getting to the shop for computerized diagnostics so that you don’t end up with a wildly expensive repair bill that could’ve been avoided. Here’s a look at six common reasons a check engine light comes on.

Failing Mass Air Flow Sensor
This is what monitors incoming air and then determines how much fuel should be injected with it. If this is what’s causing your check engine light to illuminate, it shouldn’t be too expensive to take care of.

Faulty Catalytic Converter
On the other hand, this issue tends to be fairly expensive to address. Nonetheless, it’s a problem that’ll promptly need to be resolved due to the catalytic converter’s important role, which is to turn carbon monoxide into an emission that isn’t as damaging to the environment.

Failing Oxygen Sensor
This tracks the quantity of unburned oxygen in your exhaust system. Problems with the oxygen sensor can lead to a reduction in fuel-efficiency, as well as issues with the catalytic converter.

Faulty Ignition Coil
This works to generate the spark needed for your engine to come roaring to life on all cylinders. Extreme weather temperatures can sometimes cause ignition coils to go awry.

Bad Battery or Charging System
A failing battery can lead to low voltage at the computer, which could trigger the check engine light.

Poorly-Fitting Gas Cap
A loose gas cap can result in gas evaporating before you get the chance to use it—and could also actually cause the light to come on.

If you need check engine light diagnostics and repair, be sure to get in touch with a reputable mechanic. For European auto repair in Redmond, Kirkland, and Bellevue, WA, the experts to contact are at Europa Imported Service at (425) 276-7394. Europa Imported Service specializes in Volvo, Saab, and BMW repair in Bellevue. Feel free to give Europa Imported Service a call today to schedule an appointment for any of your repair or maintenance needs!