GDE is back and making EPA compliant tune!

[biodiesel]

GDE tunin'

So much winning!

Sponsored

 

[Kole Miller]

GDE tunin'

You are in very good hands. Please post how you like the tune and your improved gas mpg. in addition if they gave you the hand held to tune the transmission let us know please. At 70 mph when you step on it she really throws your head back.

 

[WXman]

Yes, I did get a handheld to use for the trans. I was also able to get my brand new PCM flashed to stock for my truck. So now any dealership trips that I know about I can swap in the stock PCM and reflash the stock trans tune and that way I'm guaranteed to never lose my tuning.

750 miles on the truck today but it was worth it. The GDE tune is stronger and the trans tune portion is a must have because it allows the extra power to be delivered and not retarded by torque management. Where I feel it the most is at low to moderate speeds. Truck has significantly stronger throttle response and power. There's a 400 foot paved hill I have to drive up to get to my property. The stock tune required more throttle and it would almost always bog down half way up the hill and then downshift which was annoying. The GDE tune just zooms right up the hill with little pedal effort. In highway driving, it holds gears longer which allows the diesel torque to be advantageous whereas the stock tune downshifts at the drop of a hat. I got caught in a traffic jam in Cincinnati and at low speed the truck would buck and jolt in 2nd gear with any on/off action of the throttle....it acts like a manual transmission which tells me they've got the torque converter locked up more of the time. That's a little annoying at low speed. But overall the trans tune and the added power is great. Passing on the interstate at any speed is now effortless.

Fuel economy seems to be 1-2 MPG better BUT I won't know for sure until I drive my daily routine for a couple of weeks.

I haven't gone WOT yet but I did give it 3/4 throttle a couple of times and it'll downshift quickly but then it makes a rattling noise. Reminds me of a gas engine pinging on gas that's of too low octane rating. Not sure what's up with that. Must have something to do with the new injection timing or something.

Overall I really like it so far but I need more time with it. I was in a hurry to get home. 12 hours in the tiny seat of a JT will hurt a guy. Lol.

Keith and Mat (I think is his name?) were both fantastic guys to work with. I learned some new things from them while I was there too. I can tell they really know their stuff and have a ton of experience from working in the OE field and aftermarket field both. I had their tune back when they first started their company on a Jeep and it was great. Hopefully this one will be even better.

 

[av8or]

just out of morbid curiosity, what is the 'all in' price to get the engine tune, and trans module tune?

 

[WXman]

just out of morbid curiosity, what is the 'all in' price to get the engine tune, and trans module tune?

$1000 flat cash in person, or $1,100 plus sales tax if you do it through the website and mail in the PCM.

They obviously reserve the right to change this at any time. It's just what I experienced this week.

 

[av8or]

$1000 flat cash in person, or $1,100 plus sales tax if you do it through the website and mail in the PCM.

They obviously reserve the right to change this at any time. It's just what I experienced this week.

ok thanks, and you said you found spare pcm's for a couple hundred bucks online?(just skipped thru your video earlier today thanks for posting that) we're in az, at altitude so a little extra umph for going up and down mountain passes and economy would be nice

 

[biodiesel]

we're in az, at altitude

Where are you in Arizona?

 

[WXman]

ok thanks, and you said you found spare pcm's for a couple hundred bucks online?(just skipped thru your video earlier today thanks for posting that) we're in az, at altitude so a little extra umph for going up and down mountain passes and economy would be nice

Yes I copied the part number from my existing PCM, and did a Google search for "Mopar ____" and a LOT of online vendors came up selling the PCM for around $200 bucks. "Mopar Genuine Parts" is the vendor that I got mine from.

Just a side note, I may have to flash the transmission back to stock until they tweak that part of the tune some more. The behavior below 15 MPH is driving me insane. It's very reluctant to shift, and it also won't coast. Imagine driving a stick shift but without a clutch pedal.

 

[biodiesel]

Just a side note, I may have to flash the transmission back to stock until they tweak that part of the tune some more. The behavior below 15 MPH is driving me insane. It's very reluctant to shift, and it also won't coast. Imagine driving a stick shift but without a clutch pedal.

Is your transmission still trying to learn your new driving habits? When I got the GDE tune for my 2015, I had the same issue, but probably not as bad as your issue. It took about 3 - 4 days before my transmission relearned my driving habits and smoothed out.

 

[av8or]

Where are you in Arizona?

northern, prescott area

 

[biodiesel]

northern, prescott area

Very nice. I'm on the New Mexico side (7,000' feet, Zuni Mountains).

 

[av8or]

Very nice. I'm on the New Mexico side (7,000' feet, Zuni Mountains).

i can't even count the number of times i've hit ZUN at work lol
we're only 5k' and change here

 

[mayerrony]

Yes I copied the part number from my existing PCM, and did a Google search for "Mopar ____" and a LOT of online vendors came up selling the PCM for around $200 bucks. "Mopar Genuine Parts" is the vendor that I got mine from.

Just a side note, I may have to flash the transmission back to stock until they tweak that part of the tune some more. The behavior below 15 MPH is driving me insane. It's very reluctant to shift, and it also won't coast. Imagine driving a stick shift but without a clutch pedal.

Is the odometer mileage stored in PCM? If so, and you put the stock PCM in when going to the dealer, would it not have nearly same the mileage each time?

 

[WXman]

Is the odometer mileage stored in PCM? If so, and you put the stock PCM in when going to the dealer, would it not have nearly same the mileage each time?

If the PCM keeps it's own odometer I suppose that could be the case, but if it syncs with what you see on the dash which is the way it seems to work, I don't know that anybody could ever tell the difference. If that's a concern I would specifically ask GDE that question. I sort of mentioned it in passing while they were flashing mine and they acted like it wouldn't be an issue. I dunno....

 

[WXman]

Got a CEL today. P026D is the code. I had the cruise set to 65 MPH and had been cruising for about a half hour when the light popped on. Any ideas what that code is for specifically?

Sponsored