fbx22

Can an 02 be set to the 3 cylinder high idle from the dealer? Or does that require mods for an 02

BCSCUMMINS

I don’t know if from dealer, but after hearing the smarty 3 cylinder idle I do not want mine to. The high idle is ok but that and the 3 cylinder is too scary for me.

dodgediesel

When does the Smarty do this 3 cylinder idle thing. So far I have just had normal high idle with my Smarty???

Tate

Its supposed to kick in around -10C. I've been through colder, and never even had the high idle come on. That was the pre-Espar days.

Dr. Evil

Here: http://dodgeram.info/tsb/2001/18-019-01.htm

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Symptom/Condition:

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.
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fbx22

so I wonder how much the dealer will steal from the wallet to do that stuff. Definately not a DIY thing considering DRBIII is $6900 on ebay I'll soon be going there to have the trans fluid changed and the bands readjusted because Im not comfortable doing the band adjustments, so maybe I'll see if they can do if for free or a couple bucks while its there instead of requiring a separate service card for it eliminating the usual minimum labor fee I should probably print those instructions out for the dealer as well, because they probably will give me a blank stare otherwise

Philabuster

I'm surprised nobody said it yet, but borrow a SMARTY for 10 minutes and you are set. It is not necessary to buy a Smarty to enable the high idle, but I would highly recommend one anyway!