you can either purchase a computer programmer ($200-$350+) that will allow you to check and clear codes as well as adjust computer settings for maximum performance or take the vehicle to most auto parts stores that can check the codes for free.
how to reset check engine light on 1992 Mazda mpv
There are literally hundreds of diagnostic codes that would cause the check engine light to come on. Many auto parts stores will check the codes for free and tell you what is needed to fix it.
In the computer. If check engine light is on you can get them by plugging a reader into port under dash,.
To check for diagnostic codes in a 1989 Acura Legend, first, locate the diagnostic connector, usually found under the dashboard near the driver's side. Use a jumper wire to connect terminals A and B of the connector. Turn the ignition to the "ON" position without starting the engine, and watch for the check engine light, which will begin to blink in a specific sequence to indicate any stored diagnostic codes. Count the blinks to interpret the codes according to the vehicle's service manual.
It is the port, where a diagnostic machine can be hooked up. The diagnostic will read codes from your vehicles computer. For instance if your check engine light comes on, you can plug the diagnostic machine into the data port and it will tell you why the check engine light came on so that you can get it fixed.
When the light comes on it's telling you to read the engine diagnostic codes.
The most common engine check engine light codes would be indicating that something has gone wrong under the bonnet basically. Each manufacturer has different codes and so the garage uses diagnostic computer tools to find out the problem.
To check the check engine light codes on a 1988 Acura Legend, you need to locate the diagnostic connector under the dashboard near the driver's side. Use a jumper wire to connect the two terminals marked "TEN" and "GRD." Turn the ignition key to the "ON" position without starting the engine, and the check engine light will blink to indicate the trouble codes. Count the blinks to decipher the specific codes, which can then be referenced in a service manual for troubleshooting.
take it to a dealer or a qualified mechanic for a diagnostic
Check engine light codes, known as Diagnostic Trouble Codes (DTCs), are alphanumeric codes generated by a vehicle's onboard diagnostic system when it detects an issue. These codes can indicate a wide range of problems, from minor issues like a loose gas cap to more serious engine or emissions system failures. To read these codes, a mechanic or vehicle owner typically uses an OBD-II scanner. Understanding the specific code can help diagnose and address the underlying problem effectively.
First you remove the cover from the diagnostic port under the driver's side of the dashboard. Then you plug the datalink cable from your scan tool into the diagnostic port. The scan tool will then show the diagnostic codes. Write them down and read a manual to see what has gone wrong.
After replacing the EGR valve, use the diagnostic tool and erase codes then read the codes again. I had the same problem on my 97 geo metro. After replacing the egr valve, the check engine light stayed on. After a while it was suppose to clear itself but it didn't. So I went to autozone borrowed their diagnostic tool, erased the codes and then my car passed and the check engine light went off.