What affects idle? - Performance Forum

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What affects idle?
Saturday, June 04, 2005 7:46 PM
As the subject says, what affects idle? What sensors and such? Meaning I know EGR has no effect at WOT, so I'm curious what sensors may not have effect on idle or even low rpm conditions?



Matt S.
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Re: What affects idle?
Saturday, June 04, 2005 8:10 PM
Coolant temp
IAT
MAP

The biggest one is Coolant, since it uses a coolant temp in a table to figure out the base for the idle adjustment.





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Re: What affects idle?
Sunday, June 05, 2005 7:17 AM
Shifted wrote:Coolant temp
IAT
MAP

The biggest one is Coolant, since it uses a coolant temp in a table to figure out the base for the idle adjustment.



That would explain why i had such a bad idle for a while, and when i replaced the coolant sensor, my idle went back to normal peremiters.




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Re: What affects idle?
Sunday, June 05, 2005 6:19 PM
IAC (idle air controller) to add to the list

hell, even a bad volt. regualtor on an alternator can screw with idle.



CAR GODS MADE THE 1.6 SOHC TO MAKE US 2.2 OHV GUYS FEEL BETTER.
Re: What affects idle?
Sunday, June 05, 2005 6:38 PM
think the TPS can as well.



Re: What affects idle?
Sunday, June 05, 2005 6:57 PM
yeah, totally forgot about the potientiometers going bad.



CAR GODS MADE THE 1.6 SOHC TO MAKE US 2.2 OHV GUYS FEEL BETTER.
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