Engine/Transmission (1998.5 - 2002) factory high idle

[Agades]

I had the high idle option programmed yesterday.

Last night I left pickup unplugged and started it this morning.

Temp was -5 C

parking brake was on

the high idle did not kick in



Do I need to shut off my DDufm for this to work?

is there something Im forgetting?

 

[Amianthus]

No, you do not have to unplug the UFM. I would guess that the feature is in your ECM but hasn't been enabled. It should ramp up after about 30-60 seconds. Mine works just like it's supposed to. Take it to your dealer and have them enable the feature under the Misc. menu of the DRB. Then it should work.

 

[kebees4]

I had mine back to the dealer 4 times and they never was able to get it to work so I finaly gave up mad: . Hope you have beter luck than I did. I think the biggest problem is the techs don't know how to program the ECM. Lack of training or computer skills.

 

[bucket1]

no luck either

had mine in twice no such luck it was 6 out the other day and no high idle or three cylinder action. but did get another gallon per mile out of the update

 

[Agades]

I hear ya about the incompetent techs.

I had my clutch replaced at the same time as the new programming



2 days to replace a clutch and reprogram



but my motor does sound different



it used to sound like a machine gun when I turn on the ufm

now its seems a little more quiet