I just purchased a car today and the guy that has sold it to me just started getting this idle problem. He had his supercharger v2 setup profeshionaly installed and tuned. The car doesnt have a mass air flow sensor it was removed. The car did run fine but just started acting up. What happends is sometimes it runs fine and then out of know where the car will die wile im coming to a stop light or stop sign. What happends it when i let of the accelerator the car idle jumps up and down from like 300rpm to 1300 rpm. We cleaned the tb today but it seemed to only help for a hour or two. Im not sure what else it could be. Could the TPS be off? Maybe bad? What about a dirty air filter would this cause the car to bog? Also sometimes when im on the freeway and my rpms are about 2k and i let off the gas it bogs. The car also has a exhaust leak would this cause a problem like this? The car is a auto and mods are below. Any help is greatly appreciated
Edit: forgot to add the check engine light does not on.
Edit: forgot to add the check engine light does not on.