Engine/Transmission (1998.5 - 2002) Cheap High Idle, Oem Feature?

[dartos]

Also how does the FROG generator Governor apparently work. It seems that some one on here would have experience with these and be able to use the basic information and make the PTO idle work



Jeff

 

[geusterman]

I am just putting a manual cable in to control idle. A stick on the accelerator works too. I hate the electronic stuff. George

 

[Amianthus]

I don't want to give up either.



As for memory limitations, I don't think that's the case either. Two things lead me to that conclusion. First, the ECM may be a DC spec'd part, but do you think that they would spec out how much memory the thing should have? I mean, that it should only have enough memory to run the truck and no more for future upgrades? C'mon.

Second, there is one (okay two) individual that has been using the extra memory for performance modifications. If it has enough memory for them, it should certainly have enough for us.

 

[pcarlson]

dartos,



That's what I was told. However, not to say I haven't been given bad info before. Dodge doesn't have the program to put in and Cummins might say they can't not due to memory but due to the Dodge part/warranty. They did say I could buy a new 100 pin ECM and wire harness!!



I do beleive that Amianthus is right in that there probably is a way to put the program in there and make it work. I would think that sense the wire is coming from the ECM that it is possible.



Maybe some of the Columbus Cummins plant folks know more on this as to what can and cannot be flashed/added to the ECM, Justin any insight?

 

[dartos]

geusterman Sorry to hear that you dont like the electronc stuff since thats what makes the 24v and any modern vehicle what they are.

The point of this thread was how to make the electonics work for you.

 

[geusterman]

I know the electronics are the future but part of my attraction to diesels was simplicity (had a 93 K2500 Chev--last of the mechanical turbo's) and I looked for a Quad cab 98 12 valve but no find. I like my truck and it is way less complicated that 2003's and Duramaxes. I even have roll-up windows. Trust and reliability issue for me. George

 

[HoleshotHolset]

George:



Put a p-pump on your 24-V... . no electronics needed, unless you have an auto... but even that's a piece of cake.



Matt

 

[jboehm]

Looks like back to the top on this one... right? Come guys, it's getting darned cold here in the midwest! And the dealers/techs gotta stay warm too!

 

[dartos]

Well my cold weather start up works. It was about 5 below F that night and had warmed up to 10 degrees. It was not plugged in. I started it and it took about a minute and the RPM started to climb and when it reached 1200 3 cylinders shut down and it made a hell of a racket. Worked well.



Now just to figure out the increased idle when it has been plugged in all night. The heater keeps it warm enough so the cold idle does not work.

 

[jboehm]

Finally broke down and bought a timer. Set it to come on about 4 hours before I have to leave for work, which is the coldest time of the morning. (6AM, locally) Worked fine. . at least the Cummins liked to roll over on the first hit.



Still could use more info though, on the idle... other than the damned "brace on the pedal type of fix. "



Maybe Santa can fork over a couple bux for an "aftermarket electonic hi idler" !!!!!

 

[kaffine krazed]

I've got a idea. The VP-44 has a high idle built in. If you use the VP-44 tester that checks to see if a problem is with the pump or something else. It connects to the VP-44 electrical connector the battery and you have a box that has 2 switches and a light. 1 switch is to shut the engine off the other switch engine speed from 750 to 1500 if I remeber correctly. When looking at the VP-44 electrical connector there is a wire marked high idle. I don't know if that wire is used to comunicate with the ECM during normal operation or not. I don't konw what the ECM will think if you ativate the high idle feature with it connected to the ECM. If anyone has guts please report back.

 

[StakeMan]

From what I see on this schematic I wouldn't risk feeding +12v. Not when its a +5 supply. Sounds like a good way to fry something.

 

[Amianthus]

No luck here.

Well, no luck. I just go off the phone with Star and they said there is no reflash available and that there isn't one forthcoming that will address the PTO speed function of the ECM. I had them check the 1999 files (My truck) and the 2001 files (Gizmo's truck). No information exists on this function at all. I also asked which functions the PTO wire disengages on the ECM so as not set a code. He said that there are no functions to disable as the ECM doesn't have a flash that involves that pin. Somehow I think that he didn't know and was just regurgitating what he was being told by his supervisor.

Any way you slice it, DC technical resources seems to not address this issue at all. Let alone have any desire to offer a reflash for it.

So, it's back to sqaure one. I told him that the GM and Ford ECM's have this function installed from the factory, but DC has no plans to make a flash to address this function.

Man! This is irritating (I'd hate to be a tech). I know it can be done. Off to my last resort. Hacking into the ECM (although that probably won't work either). I'll keep you guys posted on this as much as I can.

 

[RustyTRanch]

I also email star and asked this:



Is there software to enable The PTO option on dodge/cummins?

The eth/dee trucks are wired and PTO ready except for the software for the ECM. I am wanting to add a PTO device and use factory set up. What are my options. thanks for your input



Here is the responce:



Thank you for the recent e-mail regarding the PTO option.



There is no software required to install a PTO. Please see your selling dealer for additional information regarding the installation of the Power Take Off device.



Thank you for the e-mail.



I gave up on the dealer

they are no help!!!!!!!!!!!!!!!!!!!!



later

mike

 

[Big_Bad_Dually]

http://dodgeram.org/tech/dsl/ECM/index.html

 

[POW-MIA]

This maybe sound stupid but......

I am definitely no electronic wizard so maybe I'm way off here but is'nt the throttle position sensor basically just a rheostat? And would it not be possible to find out the voltage that it sends to the ECM at say 1200RPM, then using a switch and a resistor supply the proper voltage to the ECM by tapping the wire at the throttle position sensor? hell maybe you could use a headlight dimmer switch and just dial an idle

 

[pro99]

TPS VOLTS

I can't see why we can't use a resister or diode in line to a switch then tap into the feed wire to the ecm from the tps, but that sounds to easy doesn't it? All we would have to do is go from 12v to resister to one side of a switch then the other end to the tps feed back to ECM right? Flip the switch and it should override the current volts and ramp rpm?

 

[Gizmo 007]

WHOA THERE FELLAS!!!! It aint quite as easy as tapping the feed wire. There are also two built in idle validation switches in the APPS / TPS. The TPS is a potentiometer, not a rheostat. But a rheostat can be used to manipulate the voltage to ECM, but be absolutely sure to diode protect it!





I may get slapped for this, but you need to manipulate several wires at the TPS to make it work.



The LB/BK wire is the voltage to ECM, this is the wire that controls the engine speed. Do not exceed 4. 5 volts!!



The BR/OR wire is idle validation switch one. This wire must be disconnected as voltage is applied to the LB/BK wire.



The LG/DB wire and BK/LB wire must be tied together to make idle validation switch two active. This must be done as voltage is applied to the LB/BK wire.



I would recommend using a do-it-yourself circuit board, some small relays and diodes to do the switching, and a rheostat or resistor to do the voltage changes. If you are electronically minded, it's not a hard process. Just takes a little thought and planning. Everything you need can be found at Radio Shack!



I've built one with a potentiometer so that I can dial-an-idle. It's cool. Nothing like the quality of the PS High Idler, but a lot cheaper, and I had to splice the wires, not just plug it in . No biggie.



Good Luck,

Kris

 

[24VChev]

throttle Commander

This:http://www.vmac.ca/throttle/index.htm May be the answer to all your throttle needs





Malcolm

 

[jponder]

Originally posted by geusterman

I am just putting a manual cable in to control idle. A stick on the accelerator works too. I hate the electronic stuff. George

Yes that is a very effective way. You mentioned using it as a cheap cruise and you will be happy with the increased mileage it will give you. Hope you have a quick release or a manual for safety. A cable will do exactly what the PS high Idle does for less money. The PS High Idle is not governed so it wouldnt be effective in a PTO situation anyway. There was a company that had an ad in an old TDR Mag that had a governed high idle product but it was alot of money