There's engine check light in my honda civic 05(prosmatic). Sometimes it lights up, sometimes it doesn't. When its lighted up, the car changes the gear at 4rpm and if the light is off it shifts the gear at 2.5 or 3rpm max. What could be the problem? I got is checked by the mechanic, he said that "Sensor is faulty". If the sensor is faulty then why the light shuts off and car is back to normal? Help me guys, Its really bothering me.
I'm talking about this: