I installed a new air filter and unpluged sensor going into side of it.As soon as i drove the car the engine light come on ,so pluged this sensor back in but the light is still on . How do i turn engine light off ?
The SES (service engine soon) light is triggerd when it detects a problem.
If you check for DTC codes you should be abl to see why the light was triggered.
I believe, if the problem does not occur again for a certain number of ignition cycles the light will go out on its own.