This is a long shot, but have someone manually test the TPS (throttle position sensor), manually, with a lab scope. If there is an open, it can cause a hesitation when the throttle happens to hit it.
Loren
Hi I have a Lexus LX 570. I have an intermittent problem. When accelerating ( merging, changing lanes) then letting up on the gas (because of traffic ) then when I try to accelerate again, I get nothing. I have to take my foot off of the gas again for a couple of seconds or pump the gas pedal a few to times to get any response. I have had the car into a Lexus repair shop twice and they say they can find nothing wrong. I'm in desperate need of some help. I've almost been rear ended twice already.
Thanks![]()

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic