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Erratic Idle & Stalling....PLEASE HELP

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Old 04-14-2018, 09:26 AM
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Default Erratic Idle & Stalling....PLEASE HELP
2001 Silverado 4.8
After I installed my new Yank power adder torque converter I have erratic idle & stalling issues at idle or during turning. Can anyone help or point me in the right direction, I feel it maybe tune related but not sure. I have a On3 70mm kit with walbro 450 fuel pump & 60# deatschwerks injectors, tuned speed density by Fonse Performance.
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Old 04-14-2018, 07:47 PM
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Obvious places to look are pinched wires and vacuum leaks.
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Old 04-14-2018, 09:10 PM
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Originally Posted by arthursc2
Obvious places to look are pinched wires and vacuum leaks.
None that i could find, ill do a once over to make sure nothing was missed.
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Old 04-14-2018, 09:13 PM
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What’s the size of converter? What’s your idle speed in park and in gear? Does this have a decent cam?
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Old 04-14-2018, 10:36 PM
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10.5 3400 stall ,all stock. Not sure how to get the answer to the idle speed question.
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Old 04-15-2018, 08:58 PM
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Originally Posted by trxmxzx
What’s the size of converter? What’s your idle speed in park and in gear? Does this have a decent cam?
700rpms in park

5-700rpms while in gear on the brake
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Old 04-15-2018, 09:12 PM
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Originally Posted by MrHorsepowerLSx
700rpms in park

5-700rpms while in gear on the brake
In regards to both -

When I did my stall and a buddy’s - the idle airflow desired and the idle learn had to be adjusted

must’ve been due to it being able to spin up faster and come down faster - just something to look at- I’ll post a pic of what I adjusted my buddy’s to
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Old 04-15-2018, 09:17 PM
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Originally Posted by MrHorsepowerLSx
700rpms in park

5-700rpms while in gear on the brake
Thanks brotatochip
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Old 04-15-2018, 09:20 PM
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Hey thanks for the information much appreciated
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Old 04-15-2018, 09:25 PM
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No problem, however I don’t see my photo I posted up... anyhow let us know what you find out
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