OP has a 03 (Forgotten) which the tuners cannot adjust the idle. The only thing I have found that raises the idle is turning on the AC. Now if it can be figured out what actually triggers the PCM to raise the idle then possibly a switch could be rigged. There are a lot of people interested in this. Has anyone tried drilling holes in the butterfly (old school syle)? A test that can also be done is to stick a wire under the butterfly to wedge it open a little and see if that raises the idle. I suggest a wire so there is no danger of it actually being sucked into the intake.

 

Good idea. You could bend it with a hook to catch the outer lip of the throttle body so you dont lose it.

 

Actually thinking of a longer piece of maybe 12ga solid core insulated wire, to protect the blade a little and tying the other end off to something on the engine. This would hold the blade open and hopefully raise the idle. If it did then it would indicate that more air would also raise the idle and that is when the experiment with holes would begin. Anyone want to give this a quick try. My truck is in Virginia and I am not. Good luck...

 

I THINK DirtyDog drilled holes in his butterfly plate at one point when he was opening his up?

 

What did it do? Did he post the results?

 

Maybe I'm a little too low-tech with these situations, but how about a short 2X4 or other block of wood to just put a little weight on the gas?

If you want to get more technical, how about this. Get a second gas pedal sensor (I can't recall what its called) and find a way to wire it to a switch with the other one. If you could switch over to the second sensor, you could "dial up" the throttle a little. Or may it's simpler if the sensor just sends a specific voltage to the PCM. In that case you could send the voltage you want to the PCM with something like a potentiometer. Sorry, I've never owned a DBW vehicle before, so I've never really looked at how they work.

 

That's what I was thinking Buggsy. Can anyone get a pin-out for the sensor on the pedal? Or where the wire ends from the pedal?

 

Here's some info,

DESCRIPTION

The Accelerator Pedal Position Sensor (APPS)
assembly is located under the vehicle battery tray. A
cable connects the assembly to the accelerator pedal.
A plastic cover with a movable door is used to cover
the assembly.
The APPS is used only with the 5.7L V-8 engine.

OPERATION

The Accelerator Pedal Position Sensor (APPS) is a
linear potentiometer. It provides the Powertrain Control
Module (PCM) with a DC voltage signal proportional
to the angle, or position of the accelerator
pedal. The APPS signal is translated (along with
other sensors) to place the throttle plate (within the
throttle body) to a pre-determined position.
A mechanical cable is used between the accelerator
pedal and the APPS assembly. Although a cable is
used between the pedal and APPS, a mechanical
cable is not used at the throttle body. Throttle plate

position is electrically determined.