Hi, my 1986 Toyota Cressida will start up fine but then "sometime" if I let it sit idle too long it started to miss, rough idle and loss probably half the power. It will get back to normal again if I park it for day or two. Car is not overheat in anyway and it's well maintained. I wonder if certain sensor get too hot while car at idle. When the engine is acting up I can smell excessive unburned gas from tail pipe. I like trying to fix this problem myself since I don't have time to take it to auto shop. Sorry for cross posting I know this is Supra forum but it's practically almost the same car. Thank you.