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  #1  
Old 12-07-2012, 08:26 PM
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Default Car hunts off idle

Hi all
Car is a 2000 gt foz with jdm sti V5 halfcut
Went away for a week,came back battery was flat,(Odyssey)
Disconnected it,charged it,reconnected,started 1st kick.
Since then the car hunts off idle,cold or hot,it revs from 1000-2000rpm
until i press the pedal further then its all good.Idle is fine
I have a near new afm,tried my old one no change
Swapped tps with no change,
Swapped idle valve,no change
Tried different coil no change
WTF??
Can someone steer me in the right direction,very hard to drive in traffic
Thanx
Chris
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  #2  
Old 12-07-2012, 08:44 PM
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tried swapping the crank angle sensor? i don't know if a dud one would cause these symptoms but might be worth a try if you have a good known working one
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  #3  
Old 12-07-2012, 08:55 PM
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You will need to do an idle re learn because You have disconnected the battery
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Old 12-07-2012, 09:01 PM
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Quote:
Originally Posted by Marti View Post
You will need to do an idle re learn because You have disconnected the battery
Only if it has a power FC........
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Old 12-07-2012, 09:06 PM
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Works with standard ecu's aswell.iv done it on 2000-2009 foresters. Having said that it's worth a try.
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  #6  
Old 12-07-2012, 09:27 PM
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Power cycle it-Disconnect battery- wait 1 min- reconnect batt-Start car-drive car (to normal temps)-Stop car-allow to cool (overnight)-Start car-Fixed?
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  #7  
Old 13-07-2012, 09:08 PM
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Thanx
Will try idle re learn
Std ecu,std airbox,no pod
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Old 13-07-2012, 09:23 PM
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Sounds like an air leak somewhere to me, somewhere after the throttle
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  #9  
Old 14-07-2012, 08:46 PM
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another way to do an idle relearn is await for the thermos to come on, wait 10 seconds switch the car off, wait another 10 seconds and start. repeat this 10 times

makes sure everything is turned of, head lights, stereo,interior light, everything
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  #10  
Old 14-07-2012, 10:17 PM
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Will try it tomorrow
If i had an air leak,surely it would hunt at idle.
Idle is normal
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