ANSWERS: 3
  • I know two owners, one who has a 2001 SL1 for almost 7 years, and it has never given them problems. (It has 115,000 miles on it.) They report the gas mileage as good as 37mpg. You need to take your car to the dealer or a good shop. It is idling too high.
  • Sound like the ECTS (Engine Colant Temperatur Sensor) is bad. When they go bad, the PCM thinks the engine is colder than it really is. So it continoulsy tries to warm up the engine by increasing the fuel mixture and raising the idle speed. This wasts a lot of fuel, bog the engine down and fouls the spark plugs and O2 sensors. Here is a diagram from my website of the location of the ECTS; http://www.differentracing.com/mike/parts/location-ects.gif
  • i'm having the same problem with my 01 SC1, i changed the ects but it still idles high when in park, please let me how you fixed yours, thanks

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