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Nov 5, 2021 | 03:55 PM

Buckeye71

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Tuned

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Max idle

How can I keep the 30 min max idle time off? Every time I get in the truck it’s back on. Can it be turned off by forscan? 2022 f350

Nov 5, 2021 | 04:14 PM

Mike_in_STL

Mountain Pass

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ForScan has a provision for modification but I'm no pro with the software yet. I do remember something being in the list for the idle time though. One of the other ForScan gurus will probably chime in.

Nov 5, 2021 | 04:55 PM

Buckeye71

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I was thinking there was I just can’t find it

Nov 5, 2021 | 05:03 PM

zeroo

Cargo Master

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I’ve not tried it but I wonder if high idle will override it? I’ll try it next week at lunch. Mine wants to kick off at 25 min. I rarely use high idle unless i have inverter going.

Nov 5, 2021 | 08:51 PM

Buckeye71

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Quote:

Originally Posted by zeroo

I’ve not tried it but I wonder if high idle will override it? I’ll try it next week at lunch. Mine wants to kick off at 25 min. I rarely use high idle unless i have inverter going.

speaking of high idle I ordered a 22k resistor but it seems smaller than what I have see on videos do you have a link to the one your using to compare? Also if anyone knows where to change it in forscan let me know (max idle that is)

Nov 5, 2021 | 09:38 PM

Sanspy

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Joined: Oct 2018

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From: Georgia

Quote:

Originally Posted by Buckeye71

On the high idle mod, the max idle is determined by the resistor. I don’t believe you can change that in forescan. The 22k resistor should have an idle near 1200 rpm.

Nov 5, 2021 | 09:52 PM

4wd6.7L

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Quote:

Originally Posted by Buckeye71

Could be a different watt resistor. A 1/4 watt resistor is physically smaller than a 1/2 watt, 1/2w smaller than 1w etc.......

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Nov 6, 2021 | 05:31 AM

zeroo

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Quote:

Originally Posted by Buckeye71

I always wired my trucks with a potentiometer, you can get them on amazon. 50k I think, someone will correct me. I left them in the passenger kick panel and if i wanted to change idle I could but just left it at 1100 rpm.

this time I went with bd high idle. Super clean, easy to install. Just plug and play.

Nov 6, 2021 | 09:04 AM

#10

Buckeye71

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Does the watt of the resistor matter ?

Nov 6, 2021 | 11:53 AM

#11

4wd6.7L

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Quote:

Originally Posted by Buckeye71

Does the watt of the resistor matter ?

I'm for the most part electronically illiterate so I can't give a detailed answer....yes, in some uses the resistor watt does matter. In this application, from what I have read, it doesn't matter so much. The resistor is being used as a reference and something about voltage being low and ohms law lol.....my local electronics supply only had 1/4W 20k resistors in stock, so that's what I used. 1/2W seems to be a common choice and what I would have bought if they had them. The desired RPM isn't affected by the wattage of the resistor.

Nov 6, 2021 | 07:29 PM

#12

Buckeye71

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Just want to make sure that if I have a 1/4 watt resistor that it won’t burn up or something

Mar 22, 2023 | 10:34 AM

#13

pickerdd

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From: Marietta, GA

Thank you all for your comments and information helping me understand what qualifies as Engine Idle Hours. too much stop and go driving around town over the past years.

Mar 6, 2024 | 06:11 PM

#14

chukeeee

Mountain Pass

Joined: May 2017

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Go back to post 41. That was my 2016 F350, 6.2 gas. I guess I don’t let it idle enough

Mar 6, 2024 | 08:16 PM

#15

TJP249

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From: Davidsonville, Maryland

Quote:

Originally Posted by Buckeye71

Just want to make sure that if I have a 1/4 watt resistor that it won’t burn up or something

That will be fine, this application is a simple divider circuit without any real power handling requirements. The only advantage of a larger wattage would be the larger lead size that would be easier to work with and less fragile.