Need some help here!  2001 Dodge Ram 3500 5.9 cummins diesel.  Air Dog Original,fuel sump kit, New VP44, A&E Air Box Kit. Smarty S03 stacked with Edge Juice W/Att.  All of a sudden the truck start to like basically cut off all horsepower if i stand on it, so i have to back out of it and it takes off again.  I took smarty off and edge juice to see what the truck does.  With all programmers off the truck it has basically NO Power ever, feelings like im pulling a train!  I took truck to dealership they flashed both ecm,pcm back to stock and uploaded all updates including set my 35 in tire size.  Truck Did have a little bit of power but not really driveable.  Have code po501 and thats it besides po1693.  Please help send me in a direction that will solve this issue.

Edited March 16, 20178 yr by CSM

You are missing the point. It is going to misbehave in 1st and most of 2nd gear till torque management stops its nonsense. 

 

Bust our your dmm and do a sweep test of the apps. It will tell you if it is getting full voltage at wot without ever having to start the truck.

TQ management will be in effect from 0 to 20-25 MPH so speeds below that TQ management will kick in limiting power during the burn out. This is normal.

With the programmer off you won't have any boost fooling which means the truck starts to defuel around 20-25 psi of boost. This could be the cause when you say it looses power mid way through passing cars since TQ management would have no affect at these speeds. 

 

Edge tuners have boost fooling even turned off. Remember it just stock fuel map at that point so fuel is going to limit out on the top end anyways with the tuner turned off. Unhooked then is different story it Will be without boost fooling.

5 hours ago, Mopar1973Man said:

TQ management will be in effect from 0 to 20-25 MPH so speeds below that TQ management will kick in limiting power during the burn out. This is normal.

Does this effect all of our truck? So if I want to spin tires I'll have limited power to do so? Or did I miss something. 

Data log a high throttle take off with the quad.  Does fueling get pulled down by ~%30?

I did not have these issues i'm having 6 weeks ago, tires would spin mid throttle sometimes i'd get tire/frame shake. The truck had gobs of power overtaking 5-6 cars at a time on interstate with half throttle at most. Truck would spool up almost immediately and any speed.  Now the truck does have power with turners on it, but it does cut out when the truck really wants to get going and pull hard.  If I take the tuners off completely the truck acts like its a gas v6 motor at best.  I've spun the tires through 2nd gear no problem before this issue happened

I hate to say it but I think your VP is a bad rebuild.  I don't know how you can prove it but sure sounds like the vp is weak.

 

Dunno though.

I really think it is also, I'm going to sweep test the APPS tomorrow but according to my edge its working.  I did have a FASS DRP Fuel pump on it for last 6 months when i put the New VP44  Fuel Pressure was 19-15psi than i noticed it slowly going down as far as 7-8 psi as I was adding some power to the truck.  I now have a the Original Air Dog on it which I noticed little bit more power was back but Not like it was.  I'm at the Vp 44 but warranties are a real pain to deal with not having the truck running while they are repairing it.

Did you wiretap the pump?

Yes, I did tap the wire on the vp44   

11 hours ago, Dieselfuture said:

Does this effect all of our truck? So if I want to spin tires I'll have limited power to do so? Or did I miss something. 

Some say only automatics. I personally say it can include manuals.

39 minutes ago, Mopar1973Man said:

Some say only automatics. I personally say it can include manuals.

Data log a high throttle take off with the quad set ot lvl 0.  Does fueling get pulled down by ~%20? if yes you have TM if  no you don't.  

 

It is plain as day in the data logs when a truck has TM.   

14 hours ago, Dieselfuture said:

Does this effect all of our truck? So if I want to spin tires I'll have limited power to do so? Or did I miss something. 

 

All 01-02 autos.

 

2 hours ago, Mopar1973Man said:

Some say only automatics. I personally say it can include manuals.

 

Yet to see evidence of this in the manual trucks. Be interested to see someone get a log of one with the a quad.

I'm glad I've invested extra few thousand bucks for a manual when buying my truck, just seems like that's the way to go for a working horse. I'm sure there are pros and cons to both, but one thing certain is I don't have to deal with torque converter lock unlock issue. 

The truck didn't have issues with TQ Management by reducing power.  Po501 code is making the transmission kick into 4th gear to soon, now today it bouncing in and out of 3rd and 4th gear when going 39mph.  

 

The other issue is truck just shuts off "acts like"at over half throttle so you have to feather it up to speed instead of just nailing the throttle.If you don't nail the throttle is will not act up.  I believe its the vp-44 but no codes?  I need a donor injection pump to test it out.

@DieselfutureI bought mine new and know I paid some extra for the 6 speed but dont remember it being several thousand $$$. Do you remember what the extra for the 6 speed was? The Cummins was $5500.

 

@CLAUS1 I wish I could help with your tranny but I know nothing to speak of about them.

@dripley no I don't know that sorry, I didn't buy my truck new. I was just trying to say that manual transmission with cummins seems to bring at least few more thousand dollars and I'm sure glad that I spent it.

59 minutes ago, Dieselfuture said:

@dripley no I don't know that sorry, I didn't buy my truck new. I was just trying to say that manual transmission with cummins seems to bring at least few more thousand dollars and I'm sure glad that I spent it.

That make sense that the combo cost several thousand bucks more. Like I said the Cummins was a $5500 extra on the sticker and I dont remember what the cost for the 6 speed was. I am sure that dodge charged me something extra for it.

I drove the truck for 2 hours on Interstate over weekend after I set the Edge Juice w/att. for the correct tire size. Truck still isn't shifting correctly and code po501 is still there.  If the dealership set my tires at 800 revolution per mile instead of 602 rpm could that set off the po501 code?   MPH on Gps,dashboard and Edge are with in 1 mph of each other.

 

 Truck still is cutting out when i'm hard on it wanting to pass anything. Also yesterday the ABS computer under the dashboard is squelling when i'm hard on the pedal.  Pulled Alternator fuse out and it did not change anything. but it did set code 1682 which i cleared.