PE Comp and wire tap

[ROADWARRIOR]

I am expecting my PE Comp to arrive today and am nervous about torching my pump if I tap the pump wire. I had an Ottomind attached to my pump for about three months and other than a bad stumble/miss, my pump survived. I replaced the Ottomind with a VA and the stumble/miss disappeared and everything works really good. The only reason I am changing boxes is that I want more power.



My first question is if the Comp has a high pump failure rate on the early 98. 5 and 99 trucks? Second, if my stumble returns, it would seem that it is directly related to the wire tap. Any opinions and reassurance would be greatly appreciated.



Thanks, Dan

 

[Todd T]

the failure rate was on any early 98 truck and it showed up very quickly after adding ANY box. if yours has lived through two boxes now you should be good to go.



the pump wire should make a good connection and once you put it on leave it alone. dont twist on it or anything. if you do have problems use some dielectric grease on it.



make sure your power source to the box is GOOD and the ground too.





go for it

 

[dieselboy25]

Hey Dan,

Have not heard from you in a while. Good to hear you are still checking in. I already know you have a fuel pressure gauge and that is the most important thing. I made Dodge replace my failing pump before I installed my COMP. There was an article by Bluechip posted a while back stating that if you don’t have any problems right away with your pump, then you pump will last it’s normal life provided you have good fuel pressure. Steve St. Laurent posted it. Since you already had the Bank's kit, I am almost positive that you will not have any problems with your pump.



I had stubble with my COMP when I first installed it. I found the problem to be a poor job by myself in connecting the wire from the COMP to the pump wire. Once I figured out a better connection, everything is great. I noticed that my engine was quieter with the COMP correctly installed. Good luck with the installation. Shoot me an e-mail or pm if you have questions I will give you a call.

Eric

 

[dieselboy25]

Hey Dan,

Have not heard from you in a while. Good to hear you are still checking in. I already know you have a fuel pressure gauge and that is the most important thing. I made Dodge replace my failing pump before I installed my COMP. There was an article by Bluechip posted a while back stating that there if you don’t have any problems right away with your pump, then you pump will last it’s normal life provided you have good fuel pressure. Steve St. Laurent posted it. Since you already had the Bank's kit, I am almost positive that you will not have any problems with your pump.



I had stubble with my COMP when I first installed it. I found the problem to be a poor job by myself in connecting the wire from the COMP to the pump wire. Once I figured out a better connection, everything is great. I noticed that my engine was quieter with the COMP correctly installed. Good luck with the installation. Shoot me an e-mail or pm if you have questions I will give you a call.

Eric

 

[canblue]

Has anyone tried the TST grabber for the pump signal pickup? Any problems?

 

[DEZLPWR]

TST Grabber...

I saw one this weekend in person. They are slick! If I ever decide to tap into the injection pump, this is the ONLY way that I will be doing it. Say goodbye to scotch-loks!

 

[dieselboy25]

TST grabber

Are these TST grabbers for sale separate from TST fueling boxes?

Thanks,

Eric

 

[Bob Wagner]

heree is a link to the Grabber

http://www.tstproducts.com/pmgrabber.htm



$20. 00

 

[Briar Hopper]

The grabbers are nice, but be aware that the needle-type from Edge Products is just as slick, if not more so. It's not the "nicked" pump wire that gives you away. It's the history in the ECM memory documenting the fueling/boost patterns, among other data, that can give you away to a well-trained technician. There's always bound to be a few DC grease monkeys out there buying into the DC corporate game, trying to make themselves look good to management.

 

[canblue]

Briar. Thanks for the info. I have not been able to find any literature on the Edge product. Where did you find out about it?

 

[KPancake]

Does anyone know if the PE Comp and the EZ can be used together. i currently have an EZ and am seriously considering a Comp. My only concern is the pump wire scenario. Thanks.



Chris

 

[Bob Wagner]

Chris sell the EZ and buy the comp.



You can't use both the Comp is an EZ and Edge combination



BTW Piers has the Comp on special this month for $575. 00



www.piersdiesel.com

 

[Briar Hopper]

canblue, the needle connection is included with every PowerEdge or Comp that Edge sells. Take my word for it, every bit of their systems is high quality. Even the service straight from them, or their dealers.

Try one out from Piers. www.piersdiesel.com

 

[canblue]

Briar. Appreciate your reply. I just purchased the newest PowerEdge Comp unit. Reflecting on you message, there was no "pin" connector. I will have to ask Bill K . at DTT if Edge forgot to ship the connector.

 

[JR2]

Did you see a little black box that comes in half and has a wire hanging off one half of it?

By little I mean maybe 1/2 inch by 3/4 inch by 1/2 inch.



If you did it is the pin style tap.

 

[canblue]

Originally posted by Briar Hopper

It's not the "nicked" pump wire that gives you away. It's the history in the ECM memory documenting the fueling/boost patterns, among other data, that can give you away to a well-trained technician. There's always bound to be a few DC grease monkeys out there buying into the DC corporate game, trying to make themselves look good to management.

I was under the impression that the little smart boxes prevented any logging. Comments? Replies?

 

[JR2]

That is what everyone thinks. I forget who it was, but they were at an event and a cummins tech plugged into there truck and was able to tell that he had had a box on the truck. We may be fooling the Map sensor but we are not fooling the ECM.



Repeat after me... I am my own warranty station.



JR2

 

[Bob Wagner]

<b>And The ECM never lies</b>



Remove the box but the parameters are still in the brain

 

[1tuffram]

Is there a way to combat the info left in the ECM from the fueling boxes. How about a laptop or palm software program which could read the ECM and allow you to delete fueling curves, etc left by fueling boxes?

 

[15w40]

I was reading in "Troubleshooting and Repair Manual ISB Light Duty Fuel System" that the ECM on the VP44 has a Duty Cycle Monitor.



"With this feature, the ECM tracks engine load and speed. The data is stored in the ECM until INSITE is used to display it. The INSITE display shows a duty cycle map that shows the whole engine operating range in terms of speed and load. This map is divided into fifty regions. The percent of engine operating time spent in each region is shown on the display. The ECM contains duty cycle data for the whole life of the engine and for two 500-hour operating periods. The two 500-hour maps can be reset with INSITE. "



There is also a graph showing Torque on the Y-axis and Speed, (RPM) on the X-axis. Using a box will show a longer injection duty cycle at a lower RPM than a stock Dodge engine will allow. A sharp technician will see this and know something is up.