roxj

can anyone confirm if the high idle function does or does not work on 03's?
ive searched and havent found a definte answer. if it will, i would like to know how to activate it with my smarty jr.

tia

trey

Festus

No worky on 03's. 04.5 and up only.

soulezoo

Uh, not true.

I don't know about Smarty JR. but I have regular Smarty on my 04 and it is activated by turning on your cruise control and then hitting the "set" button once. RPMs will then climb to about 1200. High idle will shut off as soon as you either step on the brake or turn off the cruise.

Festus

What month was your truck built?

You have to have the option in the ECM to even turn it on as others have informed me - so that means 04.5 and up ECM's have the option.

roxj

is there a specific function on the smarty like the abs update or is it automatic?

roxj

truck was built in may of 03

vzdude

No worky on 03's. Even some of the 04.5's that had the vacuum controlled cruise couldn't use it. That seemed to be the determining factor as to which module it had. Vacuum cruise - no high idle ( other than the high idle after 2 minutes under 32* ), those without vacuum cruise ( electronic cruise ) could have the high idle enabled.

tcr

This is 100% correct!! Damnit

no_6_oh_no

What is the build date on your truck? Do you have electronic cruise or vacuum operated?

Speed Shift

Try some searching on other forums, and there are companies that make a box that ties into the tps and will give you high idel control.

soulezoo

Build date for me is Oct 03. CA emission SO 235 HP. Vacuum cruise control. Smarty download enabled high idle automatically following the steps I outlined above.

hump

My 03 has high idle.....Does the fact that I have a 6 speed have anything to do with it?

Hounddog

No. Its a differance in ECM/PCM. 03 ecm is a Chrysler set up.Sometime in 04 it was changed to a Cummins set up.

no_6_oh_no

Do you have high idle that is set using the cruise control or the auto high idle when it is cold? They are different.

no_6_oh_no

..and you can ramp the idle up and down using the accel\decel buttons ????

Be interesting to see what software revision your ECU has. I was told it was a revision level that added it and that revision could be put on some late 03 ECU's.

Roxj's truck is right in that time period that was supposedly able to be flashed to the needed level.