Sounds like a bad motor mount. I've changed quite a few motor mounts on Toyota's for the same complaint. Look for one on the lower side of the radiator, this one absorbs engine torque and is the common one to fail.
clean your injectors.
There are many reasons why your car might vibrate while it is idling. It could be running too hard for example.
clogged iac valve
During acceleration? I'm not sure. But when both idling and acceleration the engine's combustion can cause a lot of vibration in the steering wheel if you are in an older vehicle.
If you have average mileage on it, you should go get it checked. That is too low for an idle. The vibration is probly from the low idle.
because of ignition coil faulty.due to mountings,abnormal fuel pressure.
maybe but it could also be your flex tube which absorbs most of the vibration. If it is cracked or broken than you will feel a lot more vibration because it is no longer being absorbed.
Is the car running ok? If yes and its only the vibration that's an issue most likely cause is motor mount(s)
Having your lights on might slightly lower your rpm, and bring out the vibration you noticed. If you have a tach you can see if it only happens at a particular rpm. If the engine runs fine then perhaps your motor mounts are worn.
when running acand adling tuck vibration bad
Here is a link to a service bulletin that might help. http://www.fcsdchemicalsandlubricants.com/fad/tsb/031515.pdf Randy
Have motor mounts checked.AnswerYeah, it's most likely the motor mounts, I had mine replaced, it was also vibrating when the heat or a/c was on. it could also be the flex tube