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Old 07-01-2012, 02:26 PM   #1
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lager cam idle tuning

i changed a large cam and the idle speed is surging ,how to tuning the car so that the ilde speed will be stable.

thanks.


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Old 07-01-2012, 11:48 PM   #2
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i changed a large cam and the idle speed is surging ,how to tuning the car so that the ilde speed will be stable.

thanks.
Hello, Aka this is Mike Rogers from SCT.

For anyone who responds to this question, please keep in mind that Aka is in China where the control system is speed density using MAP and not MAF as in the US. I am currently in China working with our customers here but have not yet had a chance to tune a vehicle with a different cam. The vehicles here are VERY sensitive to tuning changes and almost everything effects the cars idle speed.
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Old 07-02-2012, 09:05 AM   #3
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What is the PCM code of the vehicle? Not as familiar with MAP setup but if dashpot and ISC is anything similar it will really need to be datalogged for proper tuning, cam idle settings can be a bit of trial and error to get right. Whether I am able to help or not, posting the PCM code may get you more help from others.
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Old 07-02-2012, 09:38 AM   #4
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As Mike said , he is MAP not MAF so posting a ECU code wont do much and sense the guy with the issues doesnt have software to make corrections knowing the ECU code wouldnt help

Tom
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Old 07-02-2012, 09:52 AM   #5
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As Mike said , he is MAP not MAF so posting a ECU code wont do much and sense the guy with the issues doesnt have software to make corrections knowing the ECU code wouldnt help

Tom
So where do you supposed we start? I think the only way to even help in figuring this out is going to be with a PCM code.
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Old 07-02-2012, 10:09 AM   #6
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So where do you supposed we start? I think the only way to even help in figuring this out is going to be with a PCM code.
Thank you James but this is an item that will need to be figured out while I am here. Most items that are available to modify or even log are not the same for these map cars.
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