Question about 1992 Mitsubishi Eclipse

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Automatic choke seems to be stuck open When warm car idles at 1500 to 1800 rpm

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  • 6,826 Answers

I dont think it has a choke,it is fuel injected,,change coolant temp sensor it`s not exspensive,,then it could be throttle posision sensor or map /mass air flow sensor ,,,do check air filter before doing any thing and see if it is stopped up or really dirty

Posted on Jun 28, 2009

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1 Answer

Idling problem


it's supposed to do that as the choke is working to warm the vehicle, when it warms up to operating temperature the choke goes off

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That would be your engine "choke" functioning. It's not a problem. The choke engages when engine is cold and shoots extra fuel to the cylinders to idle the engine up especially in cold with. Once the engine has sufficiently warmed up, the engine will idle back down.

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Carburetor idle mixture adjustment for lean burn chrysler engines


On a carbureted engine(the days of old) I had a method of my own
which always seemed to do really well.
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Hook up a tachometer if the car has'nt got one.
Note the idle speed in PARK.
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1 Answer

4runner idle high when cold after warm up it idle 1200 rpm shot down engine after fuw min. restarting the engine the idle to low?


it seems that the auto choke setting is maybe wrong or there is a problem with engine management, or a worn part which is sticking.

when cold, the engine should be higher as the choke will be on but a warm up idle of 1200 seem a bit high i would expect around 800 and then on restart if the engine is warm then the choke should be off but the idle being too low indicates one of the above.

Nov 17, 2009 | 1995 Toyota 4Runner

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Have a 1985 mazda rx7 will not idle .. cold start ok when choke is on once warm stalls and will not idle


There is a throtle adjuster right behind the carb. You can adjust it with a screw driver. If you are not sure where it is, just have someone press to gas pedal and you will see it move. RPM's at idle should be around 1,000 when it is idle once it has warmed up. Once that car warms up the choke moves back in and the car is probably stalling because it is not running enough RPM's.

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1 Answer

When I start the engine from cold it runs on high revs too long


Hi ..... This sounds as if it's fitted with an automatic choke, as long as the revs drop when it's warm there is nothing to worry about. The indication when these start to go wrong is that the car won't start when cold ................ even then any decent mechanic can fit a normal/manual choke.

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1 Answer

Excessive idle speed


The problem may also be the automatic choke. It could be stuck in fast idle. check all choke settings and linkages clean if nessesary. There is a separate fast idle adjustment screw on the choke linkage that controls engine speed while the engine is warming up. The tip of the screw rests against a cam that slowly rotates as the choke opens during engine warm up. Turn this screw counterclockwise to decrease the fast idle speed.

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3 Answers

1994 suzuki swift gti


that is totally normal, the car has an automatic choke that makes is rev at those RPMs when it is cold then is goes back to normal when it warms up. don't worry about it!

Aug 07, 2008 | 1994 Suzuki Swift

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