My Check Engine Light Went On—Now What?

May 31st, 2018 by

Hand holding a dirty oil filter

There’s one warning light virtually all Collinsville drivers will panic about, but whether it’s a Mazda3 check engine light or a check engine warning on another make or model, the Auffenberg Mazda service center has advice. First: don’t panic. Then:

  1. Pull over to the side of the road or find a parking lot.
  2. Read this guide.
  3. Visit your trusted service center as soon as possible.

Why is My Check Engine Light On?

We can’t answer why a Mazda CX-5, MX-5 Miata, or Mazda3 engine light has come on without investigating your vehicle, but these are some of the most common causes for a check engine light to turn on:

 

Reason Potential Risks if Unserviced
Oxygen sensor replacement warning
  • Lower fuel economy
  • Spark plug and catalytic converter damage
Loose, damaged, or no gas cap
  • Lower fuel economy
Airflow sensor replacement warning
  • Won’t pass emission test
  • Worse performance and efficiency
Catalytic converter replacement warning
  • Damage to catalytic converter, oxygen sensors, spark plugs, etc.
  • Worse performance and efficiency
Spark plug replacement warning
  • Worse performance and efficiency
  • Damage to plugs, catalytic converter, oxygen sensors, ignition coils

 

How to Reset a Check Engine Light

Many of our Fairview drivers have asked us about a Mazda6 or Mazda3 check engine light reset, to just turn the light off, but that’s not really a question we can answer for two reasons:

  • Resetting a check engine light won’t fix the problem, and it will eventually turn back on.
  • Simply turning off the light means a driver won’t worry as much about fixing a potentially serious problem.

Why is My Check Engine Light Blinking?

Depending on your make and model, your light could be blinking for the same reason someone else’s check engine light could turn on and stay on. It could also be an intermittent problem or something that only occurs during start-up. In short, if your Mazda3 check engine light is flashing or blinking, you should take it as seriously as your check engine light being on.

Can I Troubleshoot My Check Engine Light?

One of the most common reasons the check engine light comes on is a failure to tighten the gas cap well enough, so that’s the first thing you should check. If you’re a good DIY handyperson, then you might be able to take care of some of the other fixes (hopefully with genuine parts), but otherwise it’s a good idea to bring it to a pro near St. Jacob who can read the particular system code and investigate what the problem could be.

Bring Your Car in For Service Near St. Jacob

The longer your check engine light is on, the more damage the problem could do to your vehicle, and we don’t want that. It your check engine light has turned on recently, bring your car in for service at Auffenberg Mazda, where we have a full team of factory-trained and certified Mazda technicians who can run diagnostics tests, handle repairs, and get your car running again in no time — you can even schedule your service appointment online or contact our service team with questions.

Auffenberg Mazda Service Specials

Mazda Car Care - Oil Change and Tire Rotation Special
Standard Oil
Special Price: $54.95
Synthetic Oil
Special Price: $84.95
Get more value for your money! Our professional Mazda-trained technicians will:
  • Replace engine oil & Genuine Mazda oil filter
  • Rotate tires
  • Inspect tires for wear
  • Check tire pressure, adjust as necessary
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
*Syntetic Oil Extra/Up to 5 Quarts
EXPIRES: 04/04/2019
Mazda Car Care - We've Got Your Tire Special
Performance starts from the ground up. Come in and take advantage of our tire specials to ensure optimal performance, gas mileage and safety. Get the service and savings you deserve today!
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Enhance Air Quality with a New Cabin Air Filter
$49.95
The air you breathe is only as clean as the filter it goes through. A new cabin air filter will reduce impurities such as pollen, dust, mold and other airborne containments. Recommended every 12 – 24 months.
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Mazda Service Savings

We value your business. Use this coupon
to save on any service or repair:
– $10.00 off service $50.00 to $99.99
– $15.00 off service $100.00 to $199.99
– $20.00 Off service $200.00 or more
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Wiper Blade Replacement
$5.00 off

Are your wipers streaking or noisy?
Replace them with Genuine Mazda
wiper blades.
*Easy and fast installation, sold per pair
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Engine Air Filter Replacement
$25.00

Changing your car’s filters on a
regular basis can have a significant
impact on engine life and performance.
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Front or Rear Brake Special
$25.00 off

Problems with your Mazda’s brakes are
serious- don’t wait too long! Use this
coupon to receive a special discount on
the brake service you need.
Call to schedule your appointment today!
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Mazda Car Care - Genuine Mazda Battery Special
$134.95

High-performance Mazda replacement
batteries come with an equally
high-performance warranty! 36/60-month
replacement battery warranty if
installed by the dealership.
Plus applicable taxes. Valid only at AUFFENBERG MAZDA. Cannot be used with any other applicable offer. Mazda vehicles only. Prices may vary by model. Hazardous waste fee if applicable. Please present coupon at time of write-up. Coupon expires 04/04/2019.
EXPIRES: 04/04/2019
Military Discount

As a Thank You for your service: we’d like to offer you 10% off of service and parts at any one of our dealerships.

Maximum $100 discount. Cannot be combined with any other offer. Service and parts only. Not valid for vehicle sales.

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