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SVT Shelby GT500
Another build thread
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<blockquote data-quote="Catmonkey" data-source="post: 15819056" data-attributes="member: 124025"><p>Sounds like a throttle body calibration, or it's drawing in unmetered air from somewhere. On a restart start it should high idle depending on engine temp and when it's going to the normal idle, the throttle body can't compensate.</p><p></p><p>A couple things I'd check. Make sure all the EGR hoses and coil cover vent tubes are secure and not leaking, the oil filler cap is screwed tight, the EVAP valve is plumbed, the oil scavenging vacuum port on the back of the supercharger is connected to the bottom of the intake and there are no open vacuum ports. If you can set the idle higher with your flash tool, you might give that a shot as well.</p></blockquote><p></p>
[QUOTE="Catmonkey, post: 15819056, member: 124025"] Sounds like a throttle body calibration, or it's drawing in unmetered air from somewhere. On a restart start it should high idle depending on engine temp and when it's going to the normal idle, the throttle body can't compensate. A couple things I'd check. Make sure all the EGR hoses and coil cover vent tubes are secure and not leaking, the oil filler cap is screwed tight, the EVAP valve is plumbed, the oil scavenging vacuum port on the back of the supercharger is connected to the bottom of the intake and there are no open vacuum ports. If you can set the idle higher with your flash tool, you might give that a shot as well. [/QUOTE]
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