Question about Honda Civic

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When starting from cold it shakes and misses until it warms up then the automatic choke stays on permanently so it revs high when it is idling????

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  • Anonymous Dec 02, 2008

    1989 honda accord carburated... idle fluctuates and idles high ( 2000 rpm )

    choke problem suspected but cant find any good service information anywere.... not a iac problem( duh its carburated not fuel injected)

  • sherman putman Jan 25, 2009

    where is the iac motor located on a 1993 honda civic?

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  • 111 Answers

If the idle goes up and down constantly it will be the iac motor which is common on hondas 

Posted on Sep 11, 2008

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89 dodge shadow. hard start. normal idle cold, fast idle warm. sometimes it wont start until i hear fuel pump activate.


Hello,
The car may be hard to start because it may need a normal tune-up. If the spark plugs are pretty used, they will slowly stop burning as much fuel because the spark slowly gets lesser and lesser. On a cold day the fuel is harder to ignite with a small amount of spark.
Normal idle when its cold means that your cars idle is probably too high. If you lower the idle, the choke on a cold day will keep the idle a little higher until the motor warms and then it will kick back off. If the idle is too high, it will run very rich, smothering itself with fuel, and causing the idle to stay low. When the car warms, its creating better spark when its warm, and with the idle being too high its running at a fast idle.
The car wont start sometimes can be the cause of a few things. If the ground is bad on the fuel pump, it wont make a good connection sometimes for when you turn the key on, the fuel pump dont pump the fuel to the engine. Another one can be that your accessory switch can be loose going to the fuel pump. I think its your ground though. Good luck! Hope this helps.
Have a nice day. -Steve

Dec 06, 2009 | 1989 Dodge Shadow

2 Answers

1995 Mitsubishi L300 Van 2ltr aspirated motor, Automatic choke revs extremely high on cold start, will not decelerate till engine is hot. How can I remedy this?


If it's carburetor & has automatic choke, then there is probably a screw at side of carb, by step cam that moves with choke . Back it of a little at a time until you get desired cold idle speed. Make sure you turn step cam to setting it would normally be when cold, and choke on, then turn screw out to lower rpm's. Look for a little rod from choke shaft, down to base or side of carb area, to step cam.

Jul 17, 2009 | 1988 Mitsubishi Pickup

1 Answer

1993 Toyota Corolla revs high and will stay that


Automatic choke stuck on.Replace it the car is running to ritch.

Jul 17, 2009 | 1993 Toyota Corolla

1 Answer

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If your car is fuel injection,try changing the cold start temp sender.

Jul 17, 2009 | 1997 Volkswagen Golf

1 Answer

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Maybe the automatic choke needs a good cleaning and has gummed up over time and is possibly causing the choke to stick until the engine warms and loosens the part to function properly.

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1 Answer

My 1977 chevy nova doesn't stay started until it warms up


sounds like there is a problem with the automatic choke / or choke unloader vacuum diaphram. Fast idle and curb idle might need adjustments

Mar 30, 2009 | 1985 Chevrolet Nova

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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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!

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