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Discussion Starter #1
are you having the dreaded idle surging in your mustang? the following link will help you correct the situation. be sure to click through all the pages, the link is at the bottom of the page.

clicky....clicky

Remember this, It is imparative that you do all of the steps in the above link in order! Setting the TPS Voltage and THEN setting your idle RPM will throw the TPS Voltage right back off!
 

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Do NOT adjust your IAC idle. its factory set. and provided your IAC is clean and working correctly its fine.

Adjusting tps, yes you can do this. however when i checked mine it was already spot on. I fixed my idle surging issue simply by cleaning my IAC.
 

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Discussion Starter #3
i stumbled acrossed the article and thought it might help someone. if the article isn't correct don't kill the messenger, i haven't had any surging problems so i haven't tried this personally. good luck!:dunno
 
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