If it is overheating, you have to start there. Start by changing the thermostat, flush the cooling system and check all hoses to make sure nothing is collapsed. Also, make sure the cooling fans are coming on.
As far as the engine running, it may just be related to the engine temp. A tune up will not cause the engine to overheat. Also, neither the TPS not the injectors will cause it. If the injectors are dumping fuel, you will get black smoke from the exhaust.
Try that and let me know what you find.
Tuesday, October 26th, 2010 AT 5:56 PM