Back to all

Watching Your Check Engine Light

June 12, 2017

Did you know that most of the cars driving around Novi, Michigan, carry more computer power than the Apollo 121 Lunar Module that landed on the moon in 1969?

New cars sold in the Novi area have as many as 12 networked computers and over five miles (eight kilometers) of wiring. In fact, for the last decade or so, auto computers have been controlling about 85 percent of your vehicle's functions.

Cars have sensors for manifold air temperature, coolant temperature, manifold air pressure, airflow, throttle position, vehicle speed and oxygen content. All of this electronic wizardry is pretty complicated. So how do Novi drivers know when there is a problem?

It's simple; the Check Engine light comes on. The computer monitors all the sensors and uses that information to decide what to adjust such as the fuel mix, spark timing and idle speed. In addition, the computer monitors its own circuits. When it finds a fault, it turns on the Check Engine light and stores a trouble code in the computer.

It can be pretty disturbing for Novi drivers when the Check Engine light comes on. We wonder just how urgent it is. Generally speaking, it is not critical like a temperature or oil pressure light. When you get one of those it means STOP NOW! When the Check Engine light shows up, you should come in to Sovel's Auto Service in Novi to find out what the matter is as soon as possible.

Since 1996, there has been a strong emissions control component to the Check Engine diagnostic. But if your Check Engine light flashes on and off, you know that it is more urgent and you need to get it checked immediately to prevent damage. You should slow down and avoid towing or heavy loads until you can get it checked out.

Your friendly and knowledgeable technicians at Sovel's Auto Service have special diagnostic equipment that will retrieve the trouble code from the computer and help him determine what is wrong. From there, we can fix it and get you back on the road.

Stop by if you're Check Engine light is on.

Sovel's Auto Service
41425 W. 10 Mile Rd.
Novi, Michigan 48375
248-348-7337

Need Service?

Request a Quote

More articles from Sovel's Auto Repair Novi

Smooth Operator

August 30, 2026

Were used to bringing a vehicle to a stop and hardly noticing the engines even running when were sitting still. But sometimes you might notice it running rough when youre idling. Your vehicle is shaking, vibrating and making sputtering noises. You may even notice the tachometer on your instrum... More

Leaking Oil Isn’t Normal: When a Valve Cover Gasket Needs Replacing

August 23, 2026

Lets say you discover a little oil leak in your vehicle and you think, Its small. Its no big deal. Remember that no oil leak is ever normal, and it might be a sign that your valve cover gasket is failing. That gasket is what seals the top of your engine. It keeps oil inside while your engine ... More

Brandy Clears the Air

August 16, 2026

AHHHH....take a deep breath and smell the air! Hi, Brandy here today. When I go for walks or take a car ride, I love to smell the air. I learn a lot about what is going on around me. All of us want the air we breathe to be clean and free of pollution. So today, we will bark about keeping the... More