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5.3 low idle at stop quick question

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Old Oct 7, 2015 | 08:30 PM
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Default 5.3 low idle at stop quick question

Hey guys

My 67 camaro with the 2002 Tahoe 5.3 and 4L60E no mods, headers a mail out simple street tune with modified stock harness and LS1 intake.. She drives fine but after it warms up a bit when I come to a stop or hard braking the idle drops very low(like 400 or 450 rpm it seems) but doesnt conk out just drops weirdly low.

The intake, TB, IAC, MAF have all been cleaned and no leaks in the intake.

My question is if thats is something that can be modified in a retune?

or any other suggestions?

It really isnt something super serious but just annoying.

Thank you guys!
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Old Oct 8, 2015 | 02:01 PM
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no ideas?

any thoughts so appreciated.
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Old Oct 8, 2015 | 08:53 PM
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Those trucks stock idle at 500-550 anyway. What are you using for a tach? Is it accurate? There might not be anything wrong.
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Old Oct 9, 2015 | 09:24 AM
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Originally Posted by VenomousType
no ideas?

any thoughts so appreciated.
Do you have an input from the brake switch. That will idle up as you depress the pedal to activate the switch.
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