CHANGE YOUR SPARK PLUGS AND WIRES FIRST
This happens when there is an Active Misfire, or a urgent pending service matter. Get your codes checked.
Cylinder 3 misfire is correct.
My chilton's manual says # 3 misfire. Good luck.
A malfunction with the engines emission control system has been detected and requires service / repair . If the light stays on , and the problem doesn't correct itself after using the vehicle a few times , have it checked out . ( As long as the light isn't blinking , which indicates a engine cylinder misfire , and no other warning lights are on , and your engine temperature and oil pressure are O.K. etc. )
Check
An intermittent crankshaft sensor will not let the engine fire the correct times. This can definitely cause a misfire for the engine.
Have you checked the spark plug wire for that cylinder,??????????
Have it checked for codes. If it is missing you are risking doing severe damage. A misfire can also turn light on. I have the same issue, and when I checked the code it turned out to be a cam senser.
An engine cylinder misfire has been detected
you should have your injectors checked.
You probably have a misfire; Have it checked for codes. Most likely you need a tune up.
replace the coil bar and you are set