I have been having warm start issues for a couple years now. If I let truck sit about 5min and restart it will idle about 400 knock 3 times and then the idle will raise and then it runs fine. Besides that it runs great, valves are all within spec. I only use Toyota oil filters and I have used a wide variety of thin and thicker oils with no change. Could this be a problem with not getting enough fuel during warm starts. It is throwing the running to lean and tps codes. Could the tps cause this or is it the afm or injectors.