High idle with Smarty?
 

we have the smarty installed on my dads 24-valve. how long does it take for the high-idle to kick in? we had the truck sitting and running for 10min on a 20* day and not plugged in or ran in 2 days and it never came on.

just wondering if there is something i have to do to get it to work.

thanks
Cody

If the high idle is gonna kick in it typically takes about 30-45 seconds after the truck is started. You have to enable it with the SMARTY I think, I don't think it automatically does it for you until you tell it to.

I believe just installing it an d then removing the Smarty will leave the high idle enabled.

Heres the specs on the high idle:


Extended idle operation, especially in cold weather, can lead to stuck valves and bent push-tubes due to insufficient cylinder heat. This allows varnishes/oils to condense on the exhaust valve stems, leading to stuck valves, and damaged valve train components. A new software feature, enabled or disabled through the DRB III (See instructions under Repair Procedure), reduces the chance of valve sticking and improves cab heat warm-up time.

Once enabled, idle speed will slowly ramp up from 800 rpm to 1200 rpm when all of the following conditions are met:

1. Intake Manifold Temperature less than 0°C (32°F) and,
2. Coolant Temp is less than 60°C (140°F) and,
3. The Transmission is in Neutral or Park and,
4. The Service Brake pedal is not depressed and,
5. Throttle = 0% and,
6. Vehicle Speed = 0 mph

Additionally, if Intake Manifold Temperature (IMT) is less than -9°C (15°F), and all of the parameters above are met, three of the cylinders will be shut off upon reaching 1200 rpm, creating a slight change in engine sound which is normal. This allows the engine to create increased heat in the cooling system, allowing more rapid engine warm up and cab heating.

Both features will automatically disable when one of the following occurs:

1. The Automatic Transmission is placed in gear (forward or reverse) or,
2. The Service Brake pedal is depressed or,
3. Throttle position is greater than 0% or,
4. Vehicle Speed is greater than 0 mph or,
5. Coolant Temperature is greater than 79°C (175°F).

Engine speed will return to normal operation at 800 rpm. If the engine continues to idle and coolant temperature is at or below 60°C (140°'F), the feature will reenable. In order to operate properly, the Accelerator Pedal Position Sensor (APPS) must stay at idle.

Thanks Doc. Now to add my question to this. Is this guide you posted show the conditions for high idle or the 3 cylinder idle. My truck will kick in the high idle on normal cold morning but if it's really cold the 3 cylinder idle kicks in. It's a very distinct difference between the two and I'm just wondering how cold it has to be to kick it in.

Hey Cody if your dads using his Adrenaline and he has high idle enabled and the pulse is on Level 1 or higher then high idle will not kick in for the Smarty or Adrenaline. Have him disable the high idle on his Adrenaline. :U:

The high idle should be automatic. Not sure of exact temps for high idle and 3 cylinder warm up. My truck will kick in the 3 cylinder warm up mode on some mornings when it's in the teens and other morning just high idle. I would think 20 degrees would kick in the high idle
And Uncle Bubba is correct when he says its a very distinct difference in the 2. That 3 cyl warm up still gets me when I hear it. Been hearing it quite a bit this winter too:booo:

im not even sure what tune we have in the adrenaline. It is a tune that they no longer have on the website, one with no timing advanced.

we will have to try this when it gets really cold out and see if it does it or not. we normally plug it in at home but not at work.

thanks for the help guys, ill let ya'll know how it works out...

cody

Creates a slight difference in engine sound my backside. Sounds like the truck gonna shake itself apart.

If you plug your truck in at all this high idle will not kick in. I almost never plug the truck in because if i do it won't kick in and the truck will never warm up. It can be unplugged all day and it still won't come on once it's been plugged in.