sleepylegacy Posted February 11, 2009 Share Posted February 11, 2009 :eek:well, the idle sits at 700 then drops to 400 then to 0 then jumps back up to 700. but the car doesnt die, what is going on? Link to comment Share on other sites More sharing options...
sleepylegacy Posted February 11, 2009 Author Share Posted February 11, 2009 forgot to mention 1990 legacy LS wagon 240+ miles Link to comment Share on other sites More sharing options...
lmdew Posted February 11, 2009 Share Posted February 11, 2009 It could be many things at this mileage. I'd start with the simple things: Seafoam the IAC and intake track Ensure the Plugs and wires are in good condition Clean the MAF sensor Does it do it all the time? Hot or Cold? Other than the idle does it run fine? Is your gas mileage good? Link to comment Share on other sites More sharing options...
sleepylegacy Posted February 11, 2009 Author Share Posted February 11, 2009 it does it when I am at a red light, or sitting for awhile, the gas millage I noticed has gone down slightly, not much, and does this when it is warm. Link to comment Share on other sites More sharing options...
EVOthis Posted February 11, 2009 Share Posted February 11, 2009 check your throttle body is cleaned also....not all gummed up with carbon and such..ive seen a few of these problems caused by a simple carboned up throttle plate.... Link to comment Share on other sites More sharing options...
lmdew Posted February 12, 2009 Share Posted February 12, 2009 Temp Sensor on the Water manifold under the Intake manifold. There is a Temperature Switch, small one with a blade connector and the Temperature Sensor, with the connector. Link to comment Share on other sites More sharing options...
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