Fast idle at start up
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Fast idle at start up
I just installed a new iac valve and it fixed my idle when the car is warmed up and loud noise is gone but when I start the car up it goes up to 2000rpm for a couple seconds then down to normal is that normal just bought the car so I don't know what's normal
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Join Date: November 27, 2004
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I Post the Drive Cycle Info Just to Show The Varied Things That Need To Happen to Get Everything Settled. You Can Just Drive Normally for a Few Days and Everything Will Come into Play with out the Cycling Procedure.
My 02 Harley Truck Does The Rev Thing When Cold For Sure. Don't Remember about When Hot. Just Don't Think About it!
https://www.totalcardiagnostics.com/...-driving-cycle
KC
Last edited by 05stangkc; 5/4/23 at 05:09 PM.
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KC
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Did a Little Test For You as I Needed To Run an Errand This Morning. Dead Cold Outside temp 60 Degrees. Cold Start Flash to 1800 Rpm For a Few Seconds Drop to 1200 and After a Few Seconds Tapped Throttle and Dropped Some More But Not To Hot Idle Neutral Which is Usually about 750RPM.
After Errand and Returning Home Tried Hot Start Flashed to 1800 and Immediately Dropped to Normal Idle Speed. Just an FYI Reference. Similar Engine Management Era Programming.
KC
After Errand and Returning Home Tried Hot Start Flashed to 1800 and Immediately Dropped to Normal Idle Speed. Just an FYI Reference. Similar Engine Management Era Programming.
KC
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I did disconnect the battery last night today when I start it up needle goes swings to 2000 drops right down to 1800 so it looks like it's normal still need to complete the drive cycle
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