Edge EZ Surge

[Kingram]

Since I've installed the EZ, I've noticed a problem. It started the very day I installed the EZ. When cruising about 60-70 and on level ground, near 0 throttle position (very little throttle), the truck will begin to "surge". It acts like I'm tapping the throttle rapidly. Yesterday, it seemed to get worse. It is very annoying. It does it whether I'm on cruise or not. Just happens when the road levels out and I let almost off the throttle. If I completely let off or give it more, the pulsing stops.



Anyone else experience this? I'm going to call Edge about it.



Thanks,

Chris

 

[LSMITH]

That is not normal at all. Call out there and talk to them, I would bet lunch they put a new EZ in the mail to you as soon as you hang up.

 

[KKaiser]

I'd say off hand that that's torque converter shudder. At light throttle positions the stock transmission puts out very low pressure to the TC. With an EZ at default settings the torque is too high for the TC to handle at this pressure. Try setting your EZ to the middle position. This keeps the fueling at stock settings until the boost is over ten pounds (deeper into the throttle) and the shudder will disappear. It worked for me and the performance difference is unnoticeable. Your transmission will thank you.



on edit: if allowed to continue, you will burn up your TC and then your transmission through contamination. Dropping to the lower setting makes the EZ function when you need/want it and not when you don't. This originally came from DrKayak her on the board and I've never thanked him. Thanks DrK!!

KK

 

[tcourse]

TC going in and out of lockup? Their is a TSB on it. Had mine reflashed and it cured the problem.



TC

 

[Sticks]

I am an ETH/DEE, and I have experienced this a couple of times also, both on level ground and on an incline, and rpms at about 1500. Granted I got the Edge second hand, but I was told that it is only about four months old.

 

[Hohn]

IMHO, the EZ functions best on the tamest setting. I dropped mine from 3 to 1, and I drove it like this for quite a while. It's a LOT smoother this way, and the cruise control functions much better.



BTW-- the lost of low-end was not much, and was more than remedied by the installation of DD2s



HOHN

 

[LSMITH]

TC shudder on a 5 speed? Original poster is a 5 speed truck... ...

 

[KKaiser]

DOH!

Guess I should learn to read! Nevermind!



KK

 

[RedRam1]

I've been running an EZ for nearly three years, and around 25K miles on my ETH. Never noticed any surging, and the cruise works great, can't tell a bit of difference since plugging in my EZ.

My only other mod, other than guages, is RV injectors. These were installed several months after the EZ, and also seemed to have no effect on the cruise.

 

[Dr.Kayak]

KKaiser - glad you found the info. useful.



Kingram - I had a similar problem with my first EZ. I also noticed the EZ getting very hot. Way too hot to touch. Reported the problem to Edge and they replaced the unit. I have also read that poor electrical connections will cause this symptom. Try re-connecting the ECM connector.

 

[Kingram]

Thanks!!

Thanks to everyone for the thoughts and suggestions. I'm going to unplug the EZ to be certain the surging stops, then approach Edge.



My question is, can I unplug the data connector and leave the MAP connection in place?? Will this allow it to function as a boost fooler or not?



I have the boost elbow and 275's, so I will set a code if I ain't carefull.



Again, I really appreciate everyone's time!

Chris

 

[jcbrown]

Surging...

I experienced this condition almost three year's ago. At the time I test driven an Edge EZ, Diesel Dynamic's True Torque (Custom EZ), and VA (Van Aaken) electronic boxes. I could reproduce the condition driving 50 MPH with 10 pound's of boost. Felt like the engine was bucking!



Found out today that Van Aaken recently tuned their software and fixed this condition.



I have been running stock electronic's, but that may be changing soon?

 

[krs]

kingram,

I've got the same setup (maybe, see below). If you take out the EZ and the boost elbow the injectors alone shouldn't set a code - at least none were set when I did this.



Something else though - I keep seeing references to different settings for EZs. I bought mine used with no instructions and it has no place to set anything. Do I have an outdated version, or what?

 

[Sticks]

Originally posted by KRS

kingram,

Something else though - I keep seeing references to different settings for EZs. I bought mine used with no instructions and it has no place to set anything. Do I have an outdated version, or what?

Nope, unscrew the two screws from the back plate (1/4" tall x 3" long) Inside you will see two rows of three pins, and there should be a jumper bridging the top row to the bottom. I think all the way to the left is #3 (most fuel - stock injectors) and right #1 (least fuel - Big shower heads). To change settings, pull the jumper out and move it over to the next vertical set, or what ever set you want.



The rumor is that if there is no jumper, it will default to #3, but I have not tested this theory.



This is going to be funny if you have been driving around on #1 for so long.

 

[Hohn]

Originally posted by sticks

Nope, unscrew the two screws from the back plate (1/4" tall x 3" long) Inside you will see two rows of three pins, and there should be a jumper bridging the top row to the bottom. I think all the way to the left is #3 (most fuel - stock injectors) and right #1 (least fuel - Big shower heads). To change settings, pull the jumper out and move it over to the next vertical set, or what ever set you want.



The rumor is that if there is no jumper, it will default to #3, but I have not tested this theory.



This is going to be funny if you have been driving around on #1 for so long.

Just for clarity, the L-R sequence Sticks gave is correct IF THE EDGE STICKER IS UP. If it's facing the ground, the obviously the order is opposite... .



I installed mine sticker down so it looks like just a plain little black box.



HOHN

 

[Sticks]

Originally posted by Hohn

Just for clarity, the L-R sequence Sticks gave is correct IF THE EDGE STICKER IS UP. If it's facing the ground, the obviously the order is opposite... .



I installed mine sticker down so it looks like just a plain little black box.



HOHN

Good catch Hohn. Lack of attention to detail on my part.

 

[krs]

One month later... .....



Sticks!



I had forgotten that I asked the question and didn't come back to this thread until I did - yesterday. Seeing your post I went right outside to look and bigger'n . . . . , I've been running with 275s on position #1 (label up since May. I put the jumper to the mid position (#2) and went for a drive. Good Improvement! Smoother idle and smoother acceleration. Less low speed smoke. So belatedly... ... THANKS!!



(gotta' admit though that I might miss having the ability to make a big black puff of smoke at will. If someone behind me tailgated or something I could go to 3rd gear from a stop to make it pull from low rpm and fill the slob's car if he had a window down! LOL)

 

[Sticks]

Originally posted by KRS

One month later... .....



Sticks!



(gotta' admit though that I might miss having the ability to make a big black puff of smoke at will. If someone behind me tailgated or something I could go to 3rd gear from a stop to make it pull from low rpm and fill the slob's car if he had a window down! LOL)

Supposedly it is possible to adjust the EZ settings (via wire harness and switch) while running. The jury is still out on this. I am working on it, but my ETH shows no difference between the settings that I can see. There is a friend of mine that has an ETC, 275's, and an FMS box that he wants to stack the EZ with. We are gonna hook up and give it a good test. This topic was brought up quite a while ago, but most of the guys that were trying it, have since moved over to the PE Comp. I have one of the wire harnesses that were developed for the EZ, and installed a rotary switch. I will post when we get the test done

 

[krs]

Hmmm, that wouldn't be difficult. I'm not sure if it'd be worth doing though because the changes seem pretty subtle.



I only went maybe 3 miles last night so I'll leave it in the middle long enough to see if it was my imagination about the increased smoothness. The power was about the same but came on a little later. Better boost response - once it reached 10 it took only a jab to get 34. I've got 4 amp fuse in my wastegate line to block it completely. I don't usually like to drive using high RPM, but the engine revs freely to 3500 (is it 80 mph in 4th?), and is just now feeling really broken in at 20,000 miles.



Talked to Al about the tweaked HX35. Think it'll make the low speed smoke thin out?

 

[Kingram]

Again!

Well guys, after a few months on the new replacement EZ, it has started again! Surging when at or near 0 throttle. I removed the data link connector and left the MAP connector. Well, the engine still surges, not as bad, and when it does, it rolls blue smoke. So, I removed the MAP connector.



It appears to have permanently done some damage somewhere, as the engine is surging or "missing" a tad right at 0 throttle. Not NEARLY as bad as with the EZ connected, but it is noticable. I cleaned and lubed up the MAP connector (stock one, no EZ) and reconnected it. It better behave tomorrow!



Any ideas or related stories? I have a 1400 mile trip to Orlando this weekend and this isn't looking good...



Thanks,

Chris