noticed today that my car is dipping to a very low idle for a brief moment when i let off the gas.... more common when parked but if i barely tap the gas its like when the engine tries to return to idle it dips way lower than normal.... vibrates and causes all the lights in the car to dim and pulls itself back to normal..... any ideas anyone?

 

anyone? gotta drive this an hour to work and kinda worried about being stranded....

 

it may be the things you listed
Stop by a parts store for free testing of the electrical system and code scan
Might be a bad coil or spark plug,,been a lot of coil failures recently
a code of multi cyl misfire would point to that

Clean the TB throttle air plate
ck the throttle return spring assembly