HELP ! car idles fine at cold but when it warms up , it keeps shutting off

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Old Jul 25, 2009 | 07:04 PM
  #1  
billy hoang's Avatar
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From: Jersey CIty, nj, USA
Default HELP ! car idles fine at cold but when it warms up , it keeps shutting off

I've been having this problem for some time now and hope you guys can give me some ideas of what it could be. I will try to describe it as best as possible.

When I first start my car and let it idle for a couple minutes then start driving , it drives 100% fine.

But when it reaches normal operating temperature, it starts to act up.

When I'm in gear and coming to a stop, I cannot throw it into neutral right away or else it would just die out. I would need to let the rpm drop to about 500-700 til the car is wanting to cut off then put it into neutral then the idle will bump up to about 1k and idle fine.

Another example it when I first put it into first gear and start going but if for some reason I need to come to a stop right away, it will cut off.

My tuner looked at it and could not figure out what it could be. Any and all help is greatly appreciated.

Thanks
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Old Jul 25, 2009 | 07:16 PM
  #2  
digital sol's Avatar
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Default Re: HELP ! car idles fine at cold but when it warms up , it keeps shutting off

Originally Posted by billy hoang
I've been having this problem for some time now and hope you guys can give me some ideas of what it could be. I will try to describe it as best as possible.

When I first start my car and let it idle for a couple minutes then start driving , it drives 100% fine.

But when it reaches normal operating temperature, it starts to act up.

When I'm in gear and coming to a stop, I cannot throw it into neutral right away or else it would just die out. I would need to let the rpm drop to about 500-700 til the car is wanting to cut off then put it into neutral then the idle will bump up to about 1k and idle fine.

Another example it when I first put it into first gear and start going but if for some reason I need to come to a stop right away, it will cut off.

My tuner looked at it and could not figure out what it could be. Any and all help is greatly appreciated.

Thanks

check for vacuum leaks
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Old Jul 25, 2009 | 07:57 PM
  #3  
THEUSED's Avatar
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Joined: Nov 2004
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From: Vancouver, WA
Default Re: HELP ! car idles fine at cold but when it warms up , it keeps shutting off

Id check your fuel trims first
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