Like us on Facebook!
Pontiac’s Top Shop For BMW, MINI, or Porsche Check Engine Light Diagnostics
No matter the season or the weather, a check engine light is always annoying because it can indicate a range of problems in your engine.
A flashing or steady light usually means the issue needs attention and should not be ignored. Instead of becoming frustrated, drivers should view the check engine light as a clear warning and an opportunity to address the issue early.
Having this handled on time by the expert staff at Nikolas Motorsport, located near you in Pontiac, MI, helps prevent further damage and keeps the car running as it should.
Our ASE-certified Master Techs will use our modern diagnostic equipment to interface with the Onboard Diagnostic System in all models of:
Our mechanics help drivers from all throughout Pontiac and the surrounding areas diagnose & repair any issues impacting your car and causing the check engine light to stay on.
What Does the Check Engine Light Mean?
The check engine light will turn on when your car’s onboard computer (or On-Board Diagnostic system) detects a problem. Even with data from the car’s computer, it can be difficult to precisely diagnose the problem. One ASE-certified technicians can take the data from the OBD system to hone in on the problem. Some common reasons why your check engine light might be coming on include:
- Loose gas cap
- Faulty sensors
- Old or faulty spark plugs
- Failing catalytic converter
Your check engine light might not be on at all times. If the light comes on periodically, it might indicate that a part or component is nearing failure. If the light is on at all times, then this is a clear sign that the computer detects an issue that you need to address. If the light blinks on and off rapidly, this may be a sign of a major problem or other fault in the system. No matter the case, the safest option is to have an expert diagnose the problem.
Top Most Reasons for the Illumination of the Check Engine Light in Pontiac, MI
Loose or Faulty Gas Gap
What Actually Happens: A loose or damaged gas cap triggers the check engine light more often than most drivers expect. When the gas cap does not seal properly, fuel vapors escape from the tank. This disrupts the car’s fuel system, reduces fuel efficiency, and allows harmful vapors to leak into the air. The check engine light turns on to warn you that fuel vapors are escaping.
Why This Matters: You burn more fuel than you usually do. Your car’s mileage declines, and it emits more pollution into the environment. Over time, this small issue wastes money at the pump.
The Fix: Drive into our garage serving across Farmington Hills, Bloomfield Hills, and Royal Oak, MI. Our expert technicians will tighten the gas cap until it clicks and seals fully, and replace it if the cap appears cracked or the seal feels brittle.
Oxygen Sensor Failure
What Actually Happens: Your car’s oxygen sensors constantly check how much oxygen is left in the exhaust gases and also transmit information to the engine about the amount of fuel to mix with air. When an oxygen sensor fails, the engine receives incorrect data and runs too rich or too lean. The car still drives, but it never operates as it should.
Why This Matters: Fuel economy declines because the engine burns more fuel than necessary. An increase in emissions causes an inspection failure. Over time, unburned fuel overheats and damages the catalytic converter, turning a small repair into a very expensive one.
The Fix: The faulty oxygen sensor should be replaced. By scanning the system, the exact failed sensor and its replacement can be identified. Once fixed, fuel economy improves, emissions drop, and the engine runs smoothly again.
Spark Plug or Ignition Coil Problems
What Actually Happens: Spark plugs create the spark that starts the combustion inside your engine. Ignition coils send power to those spark plugs. When spark plugs wear out or an ignition coil fails, the spark becomes weak or stops altogether. The engine then misfires, feels rough, hesitates when you press the accelerator, and may shake at idle.
Why This Matters: Misfires reduce engine power and waste fuel, which can make your car feel slow and reduce fuel economy. Over time, unburned fuel can also damage other engine parts, including the catalytic converter. Driving for too long with bad spark plugs or coils puts extra stress on the engine and turns a small problem into an expensive repair.
The Fix: Replacing worn spark plugs is routine maintenance and restores smooth engine operation. When an ignition coil fails, we at Nikolas Motorsport will replace it to restore a strong, consistent spark. Once these parts are fixed, the engine runs smoothly, power returns, and fuel efficiency improves.
Get in Touch with the Best Auto Experts in Pontiac, MI
Nikolas Motorsport proudly serves drivers in Pontiac, MI, and surrounding areas, including
- Bloomfield Hills
- Farmington Hills
- Rochester Hills
- Royal Oak
- Troy
- West Bloomfield
We are committed to providing car owners with check engine light and other repair services they won’t find anywhere else. We are the best auto shop in the area because:
- We have ASE-certified technicians, are the only tuner in Michigan, and are an authorized Dinan installer/dealer.
- We offer a 2-Year Unlimited Mile warranty and provide complimentary shuttle service and loaner vehicles.
- We have a comfortable lobby with free WiFi for your convenience.
Frequently Asked Questions
What is a diagnostic trouble code (DTC)?
A Diagnostic Trouble Code is a standardized code used to identify the underlying problem in your car.
Can faulty spark plugs cause the check engine light to illuminate?
Yes, failing spark plugs can cause engine misfires, which illuminate the check engine light.
Can I drive my car with the check engine light on?
If the light is steady and your car is running normally, you can drive, but you should come to our mechanics at your earliest convenience. If the light is flickering, simply pull over and call for assistance.
Will tightening the gas cap immediately turn off the light?
No. After tightening the gas cap, the system will need to run its diagnostic checks again. It may take several mixes of start-drive-stop cycles for the light to turn off.
