Wouldn’t it be great if we had computer that we could plug into your vehicle that would tell us exactly what was wrong with your vehicle when the check engine light was on…. Some people seem to think that this technology exists- but until that marvel arrives, we still have more work to do. Computer Diagnostic Trouble Codes (DTC’s) give us a starting point for diagnostic testing. Engine controls are monitored in many different variations such as voltages, resistance, pressure and temperatures, all of which have to be tested manually and fall into specific parameters which vary by vehicle make and model.

Your modern vehicle's engine is a highly sophisticated piece of equipment. The days of your father's gas-guzzler are long gone—instead, Federal Exhaust Emission and Fuel Economy regulations demand that today's vehicles be equipped with electronic engine control systems, to curb carbon emissions and increase fuel efficiency. With technically-advanced control systems taking the place of simple engine components, common maintenance services such as tune-ups are also a thing of the past. Regular services (such as spark plug and filter replacements) are still required, as well as a computerized analysis of your vehicle's control computer. Our factory-trained technicians are here to provide these services.

Here's how your modern vehicle's control computer operates:

A network of sensors and switches convert and monitor engine operating conditions into electrical signals. The computer receives this information, and, based on information and instructions coded within this savvy computer program, commands are sent to three different systems: ignition, fuel, and emission control. Whenever a problem arises (as seen by that nagging "check engine" light), our service pros check whatever command is prompted, in addition to the status of your engine control computer and sensors. That way you'll know if your vehicle's performance is caused by a real problem, or just a sensor/computer issue.

Here's a brief overview of some of your vehicle's sensory components:

• Mass airflow sensor
• Throttle position sensor
• Manifold absolute pressure sensor
• Coolant temperature sensor
• Exhaust oxygen sensor
• Crankshaft position sensor
• Camshaft position sensor