P0303, number 3 cylinder is miss-firing. You could drive it but depending on the reason why it is miss-firing, it may damage the catalytic converter.
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means: Cylinder 3 Misfire Detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Depending on which tester you used to determine the code look at the teters manual
Trouble code P0303 means: Cylinder 3 Misfire Detected
Trouble code P0303 means: Cylinder Number 3 Misfire Detected
Trouble code P0303 means:Cylinder 3 misfire detected Trouble code P0304 means:Cylinder 4 misfire detected
P0303 : misfire cylinder #3