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Harrismarine
January 15th, 2025, 09:42 AM
Hey Guys, I have a problem getting an engine to drop down and idle below 1100rpm Its a base tune that I have used multiple times to remote tune an engine n in a boat. Its kicking my ass...I must be missing something can some of you have a look and see if you can identify what im missing..ECU is a 411 LS1, there are more idle pids in the scan

nonnieselman
January 15th, 2025, 04:36 PM
What engine is it and what is the setup?

nonnieselman
January 15th, 2025, 04:46 PM
I see desired Idle rpm is 1100 in the datalog the whole time.
Have you tried to datalog every Idle Parameter?

nonnieselman
January 15th, 2025, 04:54 PM
I would copy a stock Desired Idle Speeds and all the Idle stuff from an original OS just to see what it does.

Harrismarine
January 16th, 2025, 08:56 AM
Yes That is what is confusing me, Im not sure where that is coming from?

nonnieselman
January 16th, 2025, 09:03 AM
Ha something is causing it for sure. Id go back and start with a fresh tune and change the bare minimums to see what it does.
I dont have anything with a LS1B pcm in it right now that i could test it with tho.

Harrismarine
January 16th, 2025, 09:45 AM
Yeah i have set all idle to 800rpm, ill see what that does

nonnieselman
January 16th, 2025, 02:56 PM
Try and adjust Stall saver back to stock as well.