In today’s Super Street cars, we rely heavily on ECU management to control the fuel and ignition systems, as well as other important workings of our engines and sensors. This is both good and bad. Once in a while, electrical gremlins wreak havoc on our ECUs, and as a result, error codes appear. In most cases, when a problem is detected, the vehicle’s ECU will run in a safety mode until the code is cleared. Engineers determined a safe set of values for the ECU to use when running in this situation. This will significantly affect performance. Have no fear, children, there is a quick fix that allows you to check the codes and clear them from the ECU’s memory. Keep in mind that if the problem was not fixed, the error code will return and you will need to repeat the process when the problem is corrected. After reading a code, you can decipher its meaning on a Web site dedicated to your car, or you can consult one of the repair manuals. Follow along as we show you how to do this on a late-model Nissan.
