Check Engine Light Diagnostics in San Antonio, TX  

We Find It and We Fix It

When your vehicle’s dashboard light illuminates, count on Wizard Automotive in San Antonio, Texas, for check engine light diagnostics and reliable repairs. Federal emissions standards require that all new automobiles sold in the United States since 1996 be equipped with an onboard diagnostic system (OBD-II) that can generate universal trouble codes. Even though Texas no longer requires safety inspections for registration renewal, most modern cars registered in specific target areas still require emissions checks. Therefore, if your auto is registered in Bexar County, it will not pass if the check engine light is on. However, you don’t have to worry if your CEL is on. Help is nearby at 1115 Basse Rd, San Antonio, TX 78212. Our hours are Mon – Fri: 8AM – 5PM, and making an appointment is easy. We have an online scheduling feature, or you can call us at (210)342-1342.  

Diagnostic Methods and Underlying Causes 

When you bring your transportation to Wizard Automotive for check engine light diagnostics, we use our computerized equipment to connect to the OBD-II port. Taking readings from your car’s computer, a universal trouble code will be generated. That points us in the right direction, and we draw on our experience to pinpoint the precise problem. The malfunction indicator lamp (MIL) may come on for several reasons. Some are simple and inexpensive to fix, while others are more complex and costly. Perhaps the easiest problem to correct is a loose or poorly fitting gas cap. If it isn’t secured, an extra turn may be the solution. If it isn’t sealing properly, you may need a new one. Another problem may be the mass airflow sensor. As the name suggests, this measures and relays to your car’s computer the amount of oxygen available for combustion. Similarly, the oxygen sensor checks for unburned oxygen exiting through the exhaust. Information reported to the computer allows your car to adjust the fuel-to-air ratio to maximize efficiency. Bad spark plugs or wires can also trigger the warning. Perhaps the most expensive problem to repair is the replacement of a bad catalytic converter. This component uses chemical reactions to make exhaust less toxic. Fortunately, this doesn’t often go bad. Other problems can arise to trigger the light, and our team will be glad to help you with anything that goes wrong. Should your car’s light come on, don’t panic. It is safe to drive to reach our shop unless the CEL continues flashing beyond the initial start-up.  

Your Trusted Shop 

Wizard Automotive is the shop you can trust for check engine light diagnostics and related repairs. Our experienced professional technicians can assist you with all makes and models. What’s more, we specialize in helping you maintain your business fleet and your personal car. Should your vehicle need any CEL/MIL-related repairs, we stand behind our work with a respectable 12-month/12,000-mile nationwide warranty. Additionally, financing is available, and you can pay with major credit cards. Feel free to use our Wi-Fi at no charge while you’re here. If your check engine light illuminates, don’t panic. Instead, entrust your automobile to Wizard Automotive.