Weird idle problems when starting the car, gone when warmed up

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Old 04-03-2004, 11:46 PM
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Default Weird idle problems when starting the car, gone when warmed up

hey guys, i just installed a turbo kit (td04 15g) on my d16y7/8 and it has this weird idle when i start it up. It will be normal when i start it up but about 15 seconds the rpm will drop to about 100 on the brink of dying from 700, and the vac will go from 20 to 0?? so the as the rpm is dropping, the vac drops, do you think its a vacuum leak? it will idle at 100 until i give gas, then back to 700, then to 100 with same vac symptoms every 20 seconds until i give gas, then back to 700, then to 100. after about 4 cycles of this gas on, gas off, it will go away (when the engine is warm) can anyone diagnose this?

Old 04-04-2004, 08:40 AM
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it might be the idle control valve. if it was a leak when u start it up the rps would be high.
Old 04-04-2004, 08:44 AM
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Default Re: Weird idle problems when starting the car, gone when warmed up (Civiclx)

check your iac valve. my car did the same thing.
Old 04-04-2004, 10:45 AM
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Default Re: (bluep3)

would it necessarily throw a cel? 14? cause im not getting a cel
Old 04-05-2004, 09:04 PM
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Default Re: (Civiclx)

ttt
Old 04-11-2004, 11:32 AM
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Default Re: (Civiclx)

its not throwing code 14, would it need to to make it be the IACV?
Old 04-11-2004, 03:16 PM
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Default Re: Weird idle problems when starting the car, gone when warmed up (boosted3dr)

what do i need to check on my iacv ?
Old 04-11-2004, 06:15 PM
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Default Re: Weird idle problems when starting the car, gone when warmed up (Civiclx)

the iacv will only set a dtc if it is electrically fouled up. mechanically it could be not working and not set a code. difficult to test one that isn't electrically screwed, aside from just replacing it.
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