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Check Engine

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What does the "Check Engine" light mean?
When the "Check Engine" light comes on and stays on while the vehicle is running, it means that the on-board computer (known as the Electronic Control Module, or ECM) has detected a problem in one of the many systems it monitors and controls. The problem may be minor but it could be serious.
 
What if the "Check Engine" light comes on but my car is still running okay?
The best thing about the 'Check Engine' light is that it lets you fix little problems before they become big, expensive problems. And not every problem gives you obvious indications (hard starting, rough running, stalling, etc.) that something is wrong. That's why you can't ignore this important little light. The 'Check Engine' light also alerts you to problems like poor gas mileage or reduced performance. These can evolve so slowly that you get used to them. But your on-board computer is sensitive enough to detect even gradual changes, then let you know when something is wrong.
 
What will you do when I bring in my vehicle?
When you come to us with the "Check Engine" light on, we connect your vehicle's computer to our computer. Your car's computer is able to give our computer a trouble code, indicating why the "Check Engine" light was activated. Once we correct the problem your car's computer makes sure everything is back to normal, then turns off the "Check Engine" light. Today's on-board computer technology allows us to quickly see if all vehicle systems are operating normally. While our computer is connected to your car, we can check idle speed, throttle response, engine temperature, fuel system pressure, manifold vacuum, exhaust emission levels and other key indicators, all through your vehicle's ECM. While computer technology can direct us to potential problems, nothing can replace the skills and knowledge of a trained technician. Working with the computer, our staff can thoroughly diagnose and correct any problems your vehicle may have.
What does the on-board computer do?
The computer processes information it receives from the sensors, then sends out commands to the systems it controls. This includes your car's fuel delivery, spark timing and emission control systems. Most of the time, your on-board computer is hard at work and you're not even aware of it. But when it needs your help, it turns on the 'Check Engine' light. That's your vehicle's way of saying 'Take me to a qualified service technician right now!'
 
If my vehicle needs new parts, what kind should I get?
When replacing parts, always insist on a brand that meets or exceeds the specifications established by your car's manufacturer. Many high-quality replacement parts actually work better than the original part your car was built with, because they include improvements to the original design. The engine management components we sell are manufactured to meet or exceed all original equipment specifications. We also recommend our products because we can get the right parts and make the repair for you more quickly. Want to know more? If this brochure hasn't answered all of your questions about the "Check Engine" light, just We are fully trained and qualified. Remember, whenever you see the light, be sure to see us, too. Bring your car in now and we can perform an 11-point Engine Performance Check
  1. Check for any trouble codes in the computer
  2. Check engine RPM
  3. Check throttle position sensor output
  4. Check airflow/density
  5. Check fuel correction measurements
  6. Check oxygen sensor readings
  7. Check air-intake hoses for cracks and leaks
  8. Check engine coolant and air temperature
  9. Check output signals
  10. Check air filter condition
  11. Check PCV valve system
Remember
When the 'Check Engine' light comes on and stays on, you need to see a qualified service technician right away!
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