With a scan tool.
Yes, may read service engine soon, check engine, .....
With an OBD2 scan tool.
Use an automotive computer code-scanner to read the stored code. Then you'll know why the "check engine" light is on.
The codes are read with an OBD2 scanner.
Yes a lack of back pressure can cause the oxygen sensors to read improperly, which would turn the check engine light on.
When the light comes on it's telling you to read the engine diagnostic codes.
The check engine light on a 94 Buick Olds Cutlass is read using an OBDII code reader. It is connected to the port under the dash which interfaced directly with the reader.
how to reset check engine light on 1992 Mazda mpv
The service engien light (check engine) comes on when the engine computer detects a malfunction and sets a code. You need to have the codes read, diagnosed and repaired to keep the light off.The service engien light (check engine) comes on when the engine computer detects a malfunction and sets a code. You need to have the codes read, diagnosed and repaired to keep the light off.
Get a code read out from your engine computer and it will tell you what is wrong.
Check engine light? You have to plug the computer in to read the faults. If you do not have one, then most good service shops have, and for a small fee will help you.
I clear the check engine light with a Scangauge II. But most ODB-II devices can read and clear the code.