I have a 2001 v6 camry,when i try to start it in the morning it StARTS and goes right off,but when i start It and keep my foot on the GAS FOR ABOUT 3 MINS IT STAYS AND WORKS NORMAL.I TOOK OUT MY TANK AND CLEANED IT ALREADY,CHANGED MY FUEL FILTER,PLUGS.PLS HELP ME WHAT NEXT DO I DO