hey guys i bought this 2001 lexus is300...here's the problem:
whenever i pin the gas pedal it hesitates a few seconds before kicking in to accelerate, and then doesnt seem to give full power and speed up quickly, even though the RPMs are running fairly high. also sometimes there is a popping noise from under the hood, like something is backfiring (also occurs when i put the gas pedal full down)... any ideas whats going on? a friend mentioned the air/fuel mixture could be off......?
any help would be great
thanks!
john.