it is having a misfire im guessing, is it vibrating all the time?
No, they do vibrate to a degree as they are generally mounted to the engine and it vibrates but it should not vibrate due to its operation.
Yes, bad spark pugs or plug wires can cause the engine cylinder to misfire which will cause the engine to vibrate.
A 1994 Corolla engine may vibrate if the motor mounts need to be replaced. The motor mounts can be purchased at any auto parts store.
could be a broken engine mount.
Could be a misfire. In need of a tune up.
motor mounts
It is idling. This is hard for an engine to do smoothly.
Possible bad motor mount
thermal energy
It is the engine that is vibrating and it is just being felt in the steering wheel. Can be a vacuum leak, or miss in the engine.
One of the main causes of feeling a vibration in the gas pedal is engine vibration. The vibration from the engine causes the accelerator cable or linkage to vibrate and the vibration can be felt in the gas pedal. Check with a mechanic to be sure.
The engine is running C O C K