Check engine light on a car that needs automotive diagnostics

When most people think about car troubles, they often imagine the harsh grinding of gears or billows of smoke pouring out from under the hood. However, sometimes our cars can reveal problems in subtler ways, such as the check engine light. Our car diagnostics and repair experts at Greg’s Japanese Auto can pinpoint the exact cause of that pesky check engine light and other automotive symptoms in Japanese and Asian imports.

What is a Check Engine Light?

When one or more of your car’s sensors detect an issue, the onboard computer system responds immediately. The check engine light is a car’s automated way of telling you that something is going on inside worth examining. A steady light usually means the issue is less serious while a flashing light often indicates a bigger, more urgent problem. In either case, the tiny light can be tempting to ignore, but it is important to bring your vehicle in as soon as possible to avoid exacerbating the issue and potentially raising repair costs.

Diagnosing Check Engine Light Problems

While the check engine light may not look like much, a professional auto repair technician can determine the cause and severity of the issue behind that simple light. Here are just some of the possible causes for an illuminated check engine light:

  • Loose gas cap
  • Cylinder misfire
  • Insufficient Exhaust Gas Recirculation
  • EGR valve problem
  • Faulty oxygen sensor
  • Bad spark plug wires or ignition coil
  • Knock sensor circuit malfunction
  • Catalytic converter problem
  • Bad mass air flow sensor
  • Engine vacuum leak

Whether your car needs a routine oil change or a parts replacement, Greg’s Japanese Auto provides the best import auto repair. With such a wide range of causes, taking your car in for a quick check-up can help you get the problem solved quickly and correctly, saving you plenty of time and money.

Specialized Service and Care Near the Puget Sound

Our friendly, reliable staff is fully prepared to tackle all your automotive diagnostics and repair concerns with speed and efficiency. Greg’s Japanese Auto uses the latest diagnostic equipment to give your car the most accurate and effective service it deserves. Contact us today to schedule your next service at one of our 8 Western Washington locations.

Appointment Request

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  • Disclaimer: Our Service Centers specialize in the maintenance and repair of Japanese imports manufactured for distribution in the US market only. Vehicles produced and distributed for other markets require specialized parts which we do not inventory.


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Greg’s Japanese Auto

Tired of auto repair shops that don't understand your car? Want a car mechanic who does? Come to Greg's Japanese Auto.

We only work on Japanese makes and models, and we have the experience and knowhow to give your car the service it deserves. Call us today to schedule your appointment.

Call Us Today

For quality service of your Japanese car model, rely on Greg's Japanese Auto Parts and Service. Call to schedule your appointment today at 1-800-564-5460.


It is only after great consideration, and a difficult decision, that effective Friday, March 13th, 2020, Greg’s Japanese Auto will be closed until further notice due to the COVID-19 Pandemic recommendations issued by Governor Jay Inslee, and the Center for Disease Control and Prevention (CDC) guidelines.

We have a responsibility, as a company that works with the community, to comply with these guidelines in order to ensure a safer and healthier community for all.

The truth is, there was no decision we could make that would satisfy every person that comes into Greg’s Japanese Auto. However, we know that if our community is to stop the spread of this virus, we have an obligation to adhere to the same actions.

We cannot put our vulnerable populations at greater risk by continuing the spread of this virus. The most responsible thing we can do is to take greater action now.

Please stay safe and healthy and do your part in controlling the spread of the Coronavirus.

Questions and concerns regarding Greg’s Japanese Auto please call 1-800-564-5460

Thank you for understanding our tough decision during these difficult times.