-
TDR Magazine subscribers receive more than the magazine! You also gain additional forum privileges!
Details here: TDR Privileges
Subscribe to TDR Magazine here: https://www.tdr-online.com/
Engine/Transmission (1998.5 - 2002) Just installed Edge Comp.. WEAK!
- Thread starter wicked6
- Start Date
Attention: TDR Forum Junkies To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.
Thanks, TDR Staff
2nd Gen Non-Engine/Transmission Do You use Torque Wrench to tighten oil plug or not
- Wiredawg
- Replies: 17
- Status
"After two hours of frustration it turned out that the six pin connector that plugs into the box had one wire that had come out enougth that it didn't connect the the pin In the box!!!!!!! It was the white wire that went to the map sensor. Simplest things. "
That is an EXCELLENT point!
We tend to focus on poor connections and grounds on the TRUCK wiring, but often overlook the wiring and connections of the stuff we're adding on! This is the *second* time I've heard of failed connections on aftermarket boxes - and as I think about it, similar poor/failed connections HAS been probably the leading cause of all MY past electrical problems, both in my vehicles, and in my RV!
Crimped connections are failures waiting to happen - soldering is by far the best - but often pretty hard where proprietary multi-pin connectors are involved - but dern sure worth being aware of...
That is an EXCELLENT point!
We tend to focus on poor connections and grounds on the TRUCK wiring, but often overlook the wiring and connections of the stuff we're adding on! This is the *second* time I've heard of failed connections on aftermarket boxes - and as I think about it, similar poor/failed connections HAS been probably the leading cause of all MY past electrical problems, both in my vehicles, and in my RV!
Crimped connections are failures waiting to happen - soldering is by far the best - but often pretty hard where proprietary multi-pin connectors are involved - but dern sure worth being aware of...
wicked6 said:
Yep. Keep us posted on the Box!!
bgilbert said:
It varies!! I don't understand it, as it'll pop up to 15+ psi & drop to 8-ish & hold there. . At WOT, it'll drop *maybe* 1-2 psi... Then for whatever reason - it pops up to 15+, drops to 10/8. . ugh. .
5x5, 3x5, 3x3, 2x2, 2x5 - same thing - OK throttle response, no notable increase in EGTs over stock, therefore: no additional fueling is taking place. . <?> I'll check the VP44 tap connection again tonight, after a few IPAs...
Edge said/typed - "unit received, updates made, unit tested and sent back". . Doesn't sound like anything was wrong with it - so it must be the injection pump!!!
Great... Looks like it was replaced by the previous owner once before, so maybe it's time for some diagnostics at the local Cummins shop to be sure... ?! Time to go sell some stock.....
Check your truck for codes yet??
I think that if the VP was bad you would know it. Fueling boxes tend to kill weak pumps right off the bat, not just show poor performance.
There is something not right here, I bet you have a problem not related to the comp at all.
For the person who asked if you can just pull the comp box out of the truck and leave the harness in, Yes you can but you need to reconnect the MAP sensor to the stock plug. Otherwise you will go into limp mode. If you have added injectors then you should also remove the boost elbow to prevent over boost and limp mode. Limp mode will generally sent the check engine light so it will be obvious if it happnes.
My first drag comp box was weak, I swaped it with a buddy who had a regular comp and his made more seat of the pants power. I sent mine back and holy cow did I get an improvment.
My tap to the VP44 is the one edge sent with there origional fueling box. Its a little black square box that is split in half. It has a pin that pokes through the insulation of the wire and then the other half of the box snaps back over and locks it down. I have been running that for 4 years with no problems. I sure wish Edge still sent those with there boxes.
Good luck with your problem.
I think that if the VP was bad you would know it. Fueling boxes tend to kill weak pumps right off the bat, not just show poor performance.
There is something not right here, I bet you have a problem not related to the comp at all.
For the person who asked if you can just pull the comp box out of the truck and leave the harness in, Yes you can but you need to reconnect the MAP sensor to the stock plug. Otherwise you will go into limp mode. If you have added injectors then you should also remove the boost elbow to prevent over boost and limp mode. Limp mode will generally sent the check engine light so it will be obvious if it happnes.
My first drag comp box was weak, I swaped it with a buddy who had a regular comp and his made more seat of the pants power. I sent mine back and holy cow did I get an improvment.
My tap to the VP44 is the one edge sent with there origional fueling box. Its a little black square box that is split in half. It has a pin that pokes through the insulation of the wire and then the other half of the box snaps back over and locks it down. I have been running that for 4 years with no problems. I sure wish Edge still sent those with there boxes.
Good luck with your problem.
Comp box mystryes!
All,
In my search for what might be wrong with my newly installed comp box, I stumble on this post. I just wanted to let you know I had just pierced my pump wire on Saturday and was enjoying the full power of the COMP VS the EZ mode. So I was playing around with the smoke settings, you know, the second set of adjustments. Anyway I had tried changing them to different levels like, 3X3, and 4X3 etc. I thought that that if I left the 5X5 alone I could always put it there when I needed it, and I would have 5X5. Well that was not the case. When I went to 5X5 mode the first time before I messed with the boost settings I would get a nice black cloud of smoke at WOT. After messing around with the setting on Sunday, I started to notice that when on 5X5 mode my magic smoke was not there??? Yet when the boost came up, the truck ran strong! Yet I was still mystified to what was going on. So to the TDR I came for answers. I found lots of stuff to check, but none of them fixed my problem. Then it dawned on me that I had changed the setting on some of the lower levels like 4X3. But I thought that it should not make a difference when in 5X5 mode. But I figured I would change all level’s to sub level 5 and see what happens. It turned out the only one I had left changed was 4X3. So I took it to 4X5 then bumped it up to 5X5 and now 5X5 is working again, and the magic smoke is coming out the back, and the transmission is slipping like mad( that is getting fixed on the 18th)! I looked at the instructions again and it says each level is programmable for it sub level. It does mention something about using the right arrow to get the lights to all show. When ever I go to the sub level menu they all show and flash on and off. What I did was adjust the sub and then try it. I am wondering if all the lights need to not be flashing to set it??? I will try it tomorrow and see if hitting the right button a few times clears up the flashing and then reset the level’s and the sub level’s and see if 5X5 still works after that. Some of you may have known this, but I did not see anyone post about this. So I thought I would share what I found out after reading this post!
Chris Brandt
Anchorage, AK
All,
In my search for what might be wrong with my newly installed comp box, I stumble on this post. I just wanted to let you know I had just pierced my pump wire on Saturday and was enjoying the full power of the COMP VS the EZ mode. So I was playing around with the smoke settings, you know, the second set of adjustments. Anyway I had tried changing them to different levels like, 3X3, and 4X3 etc. I thought that that if I left the 5X5 alone I could always put it there when I needed it, and I would have 5X5. Well that was not the case. When I went to 5X5 mode the first time before I messed with the boost settings I would get a nice black cloud of smoke at WOT. After messing around with the setting on Sunday, I started to notice that when on 5X5 mode my magic smoke was not there??? Yet when the boost came up, the truck ran strong! Yet I was still mystified to what was going on. So to the TDR I came for answers. I found lots of stuff to check, but none of them fixed my problem. Then it dawned on me that I had changed the setting on some of the lower levels like 4X3. But I thought that it should not make a difference when in 5X5 mode. But I figured I would change all level’s to sub level 5 and see what happens. It turned out the only one I had left changed was 4X3. So I took it to 4X5 then bumped it up to 5X5 and now 5X5 is working again, and the magic smoke is coming out the back, and the transmission is slipping like mad( that is getting fixed on the 18th)! I looked at the instructions again and it says each level is programmable for it sub level. It does mention something about using the right arrow to get the lights to all show. When ever I go to the sub level menu they all show and flash on and off. What I did was adjust the sub and then try it. I am wondering if all the lights need to not be flashing to set it??? I will try it tomorrow and see if hitting the right button a few times clears up the flashing and then reset the level’s and the sub level’s and see if 5X5 still works after that. Some of you may have known this, but I did not see anyone post about this. So I thought I would share what I found out after reading this post!
Chris Brandt
Anchorage, AK
I've always been able to adjust each power level (1st number in 5x5 description) separately from the sublevel. my experience is put comp in level1, hold power button for a few seconds and release. whatever the sublevel setting currently is, that number of bars flash. use arrows to adjust sublevel, once the correct number of bars are flashing, push power button to turn it off, turn it back on and sublevel is set for that power level. repeat for all power levels individually, turning the box off/on after each change. maybe the comp will come out of the programming mode after a certain amount of time, i haven't waited for it.
After numerous WOT passes, with lackluster results, I had ONE good launch the other morning on the way to work. Nice plume of diesel justice in my wake & we were off to the races. . She MOVED... 
I forgot to look at the fuel pressure gauge, though. . which brings me to another point. .
I think I've got a lift pump flaking out. I only have 5 psi. filter to VP with spikes to 15 psi every once in a while. . looks like I will be getting a new LP, or relo it to the frame, or just install a pusher a'la Gary K7-GLD. . Anyone have similar experiences with their combo. . ?? (weak lift pump = weak performance??)
I forgot to look at the fuel pressure gauge, though. . which brings me to another point. . I think I've got a lift pump flaking out. I only have 5 psi. filter to VP with spikes to 15 psi every once in a while. . looks like I will be getting a new LP, or relo it to the frame, or just install a pusher a'la Gary K7-GLD. . Anyone have similar experiences with their combo. . ?? (weak lift pump = weak performance??)
I installed a comp a couple weeks ago, and here is what I got on 5,5.
#ad
Weak
I have the right wire tapped, and am about to go outside and run the ground to my battery.
I can make it smoke A LITTLE on 5,5, and only when I am cruising on no boost, and then romp on it. Not as much as I expected.
I want to exhaust all possibilities before sending it back to Edge.
#adWeak
I have the right wire tapped, and am about to go outside and run the ground to my battery. I can make it smoke A LITTLE on 5,5, and only when I am cruising on no boost, and then romp on it. Not as much as I expected.
I want to exhaust all possibilities before sending it back to Edge.
yep use the elbow. If you cant make any smoke on the higher sublevels then you have tapped the wrong wire or something it should puff well on any __x5 from a dead stop.
have the EGTs changed any when you get in it.
sure is a shame that the cheapest simpilist, most available, most used friendly wire tap box causes the VP the most stress.
correct me if im wrong...
if I ever hit the lotto im gona get a smarty to run on sw-9 for timing and a blue chip redline box for fuel.
have the EGTs changed any when you get in it.
sure is a shame that the cheapest simpilist, most available, most used friendly wire tap box causes the VP the most stress.
correct me if im wrong...
if I ever hit the lotto im gona get a smarty to run on sw-9 for timing and a blue chip redline box for fuel.
Last edited:
If your confident that your "Wired Right" then you should try to get a replacement. I haven't backread this tread so dont jump me if this has been covered, But let someone / Any one that can read check your install. This is not a slam. I cannot count how many times I have racked my brain only to have an outsider point out the obvious err if my ways.
Just as a test, Check for continuity between your pump wire and the Grey comp wire. Dont assume that those cheezy taps have pierced the insulation on the pump wire. Probe the pump wire and the comp wire with sharp points and an ohm meter to see if its getting a sig.
As for smoke, You should have "Obscene" amounts of soot on 5X5 if you floor it from a dead stop. Its embarrassing sometimes. I have to be real careful with the go pedal in town or shut it (Comp) off.
Just as a test, Check for continuity between your pump wire and the Grey comp wire. Dont assume that those cheezy taps have pierced the insulation on the pump wire. Probe the pump wire and the comp wire with sharp points and an ohm meter to see if its getting a sig.
As for smoke, You should have "Obscene" amounts of soot on 5X5 if you floor it from a dead stop. Its embarrassing sometimes. I have to be real careful with the go pedal in town or shut it (Comp) off.
Last edited:
I hooked up my comp box day before yesterday, and even without tapping the fuel pump wire there is a huge difference! I don't have the guages in yet, so I won't tap the wire until they are in (stupid turbo bolts are busting off, even with penetrating oil).
- Status
Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
Advertising
Turbo Diesel Register
Issue 128 – Digital Version
Digital Magazines
FREE!
TDR Test Drive - Digital Edition
Renew
Subscribe
Gift Subscriptions
Back Issues
Subscription Status
Address Change Form
Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
The Perfect Collection Vol. II
TSB Updates
Dodge/Cummins Historical Overview
Cameron Collection
What Makes Us Tick?
Product Showcase
Advertising
