There are no vehicles on the road today that do not use computers and sensors to help monitor problems and performance today. Unless you're driving an antique!
When you get a check engine light that comes on, make sure that you take the vehicle to someone who knows how to properly diagnose the problem. Many times it's not the sensor that's bad, but something else that is causing the sensor to read bad. If this is not properly diagnosed, then parts get replaced unnecessarily.
I know you are probably frustrated with this now, but vehicles are so
much more efficient because of these systems.
〉 Answered on Oct 25th, 2007 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines