Thread: car dies when i let off the gas at low speeds

so i finally got the car to run right but when im going about 20mph or backing up or anything like that where i just have to tap the gas and it will bog down and want to and sometimes die i put it back in park or neutral and it fires right back up and goes down the road like a top anybody gota clue or suggestions any help would be great thanx

does the engine speed bounce up and down when you start it?

havent had the chance to check for codes yet so will post when i do and no the engine idles smooth when its running and no vacuum leaks