2008 Toyota Tundra Electronic Stability Control Esc Traction Control System Problems

ON MY 2008 TUNDRA WHILE PULLING A TRAVEL TRAILER ON OCCASION THE CHECK ENGINE LIGHT COMES ON ALONG WITH THE VEHICLE STABILITY CONTROL AND TRACTION CONTROL LIGHTS. THE LAST OCCASION WAS WHILE ON A RETURN TRIP A LITTLE OVER HALF WAY BACK HOME THE LIGHTS CAME ON AFTER A BRIEF STOP. AFTER ABOUT TWO DAYS THE LIGHTS GO OUT. THIS IS THE 3RD OR 4TH TIME THIS HAS HAPPENED. I TOOK THE TRUCK TO THE DEALER TO HAVE IT CHECKED OUT AND THEY SAID THAT BECAUSE I HAD A AFTER MARKET OILED AIR FILTER ON THE TRUCK IT WAS CONTAMINATING THE MASS AIR FLOW SENSOR, AND REFUSED ANY FURTHER SERVICE BECAUSE OF THE MODIFICATION, AND SAID THAT THERE WERE NOT ANY CODES IN THE HISTORY OF IT HAPPENING BEFORE. AFTER GETTING BACK HOME I PULLED THE MASS AIR FLOW SENSOR OUT AND THERE WAS NOT THE FIRST BIT OF OIL RESIDUE AT ALL ON THE SENSOR. I BELIEVE THAT SINCE THE TRUCK IS STILL UNDER WARRANTY THEY DID NOT WANT TO GO IT ANY FURTHER AND TO JUST BLAME IT ON THE AFTER MARKET AIR FILTER WHICH HAS PROVEN TO NOT CAUSE THE PROBLEM. *TR