What are common reasons a check engine light illuminates?

While something as simple as a loose gas cap could potentially trigger a check engine light, you'll still want to play it safe and get your vehicle to a reputable mechanic for diagnostics. When choosing a shop for diagnostics, you'll want to be sure you go to one that uses advanced computerized equipment, which will quickly and accurately pinpoint the issue. Here's a look at six common check engine light triggers.

Faulty Mass Air Flow Sensor

Mass air flow sensors monitor incoming air and calculate how much fuel should be injected with it. In the event that this is what's triggering your check engine light, you're fortunate in that it shouldn't cost too much to address.

Failing Catalytic Converter

This, however, can be a much more costly issue. Nonetheless, it'll need to be taken care of because of the catalytic converter's important job, which is to turn carbon monoxide into an emission that isn't as damaging to the environment.

Faulty Oxygen Sensor

Oxygen sensors keep tabs on the amount of unburned oxygen in the exhaust system. If the problem is left unaddressed, then you could see a reduction in fuel-efficiency, along with catalytic converter issues.

Failing Ignition Coil

Ignition coils play a crucial role in creating the spark needed for engines to fire up on all cylinders. Extreme weather sometimes causes ignition coils to fail.

Bad Battery or Charging System

A failing battery can result in low voltage at the computer, which can then trigger your check engine light.

Loose/Missing Gas Cap

A poorly-fitting gas cap can result in fuel evaporating before you get the opportunity to put it to use. While it might seem bizarre, this issue can actually cause a check engine light to come on.

If you're in need of check engine light services, be sure to get in touch with a reputable mechanic. For diagnostics and engine repair in San Bruno, CA, the experts to contact are at Richards Auto Repair at (650) 589-6880. Feel free to give Richards Auto Repair a call today to schedule an appointment for any of your repair or maintenance needs!

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Written and Published By MORBiZ