Performance tuning that deletes the EGR w/o CEL

honey_don't · **Posted:** Tue Mar 04, 2008 9:53 am

If the Kerma q-loader can be made to communicate with the Jeep's ECM and TCM you would not need extra modules. Four different programs are stored in the loader memory and uploaded to it by you from a computer. When I plug the loader into my VW OBDII port I can load three different tunes or the original file (If I ever need to pass an emissions test).

Turbo Tim · **Posted:** Tue Mar 04, 2008 10:31 am

Now that would be great!
One of the problems about using a clone is that the vehicle mileage is also stored in there.

So the big question: Is this program/box similar to what the GM guys use called Tuner Cat? Anyone know?

MTB_TDI · **Posted:** Tue Mar 04, 2008 11:16 am

honey_don't wrote:

If the Kerma q-loader can be made to communicate with the Jeep's ECM and TCM you would not need extra modules. Four different programs are stored in the loader memory and uploaded to it by you from a computer. When I plug the loader into my VW OBDII port I can load three different tunes or the original file (If I ever need to pass an emissions test).

So, would this be a good idea? Get someone with a pre F-37 programed ECM and TCM and have Charlie copy that tune. Then, we could get the original tune, a POST F-37 tune and a performance tune or a tune of your choice. The post F-37 tune when you take it to the dealer, the PRE F-37 tune for most other times, and a performance tune (probably all other times except dealer visits). Does that sound like an optimal set up?

honey_don't · **Posted:** Tue Mar 04, 2008 11:41 am

Turbo Tim wrote:

Now that would be great!
One of the problems about using a clone is that the vehicle mileage is also stored in there.

So the big question: Is this program/box similar to what the GM guys use called Tuner Cat? Anyone know?

The q loader is basically just a tool to transfer tuning files from your computer to the ECM. It contains internal flash memory. The tuner cat seems to allow the user to adjust variables themselves. Hypothetically one could write/adjust their own programs and upload them with the q-loader, to my knowledge this has not been done.
http://www.kermatdi.com/servlet/-strse- ... une/Detail

honey_don't · **Posted:** Tue Mar 04, 2008 11:42 am

MTB_TDI wrote:

honey_don't wrote:

If the Kerma q-loader can be made to communicate with the Jeep's ECM and TCM you would not need extra modules. Four different programs are stored in the loader memory and uploaded to it by you from a computer. When I plug the loader into my VW OBDII port I can load three different tunes or the original file (If I ever need to pass an emissions test).

So, would this be a good idea? Get someone with a pre F-37 programed ECM and TCM and have Charlie copy that tune. Then, we could get the original tune, a POST F-37 tune and a performance tune or a tune of your choice. The post F-37 tune when you take it to the dealer, the PRE F-37 tune for most other times, and a performance tune (probably all other times except dealer visits). Does that sound like an optimal set up?

I'd buy it.

Joe Romas · **Posted:** Tue Mar 04, 2008 4:56 pm

Now this would be something to have :lol:

No cutting of the wiring harness that I would only do to a junker :wink:

I wonder if the BCM or such keeps tract of reflashes and if it's detectable :?:

I've got 5 years of warranty left

Pablo · **Joined:** Thu Feb 02, 2006 10:06 pm **Posts:** 1201

InMotion, last I talked to them, said they cannot mess with the TCM... It is encrypted. They maybe able to upload or download a flash but the last we heard from them they cannot decipher the code in the flash to change VIN's, undo F37, etc. Maybe I am wrong on that or maybe something has changed?

In order for this upload to work you would need to have saved your TCM before the stealership flashed it with F37, and use your code to restore it. Someone elses code is no good, as it would require resetting the VIN number, which I don't believe InMotion can do.

Last I heard:

InMotion can only do the ECM, which is Bosch. The TCM is DC specific.

mark2m · **Posted:** Tue Mar 04, 2008 5:34 pm

Having a tune that turns off the CEL would be great. If it can get done, put me in line for it. For now I have a SEGR kit sitting on my shelf waiting for my warrenty to run out. i figure that and the Inmotion tune will be a nice combonation.

MTB_TDI · **Posted:** Wed Mar 12, 2008 8:10 pm

I will be getting the my jeep on Friday. It is an 06 Pearl Khaki Limited with 15K miles. I am pretty excited and can't wait to introduce it to Kerma! We are having a GTG on 3/22 and I will introduce them to each other!!! I'll keep you posted!

MTB_TDI · **Posted:** Sat Mar 22, 2008 11:57 pm

The CRD and Kerma met today. We need to get our hands on a PRE F37 TCM and ECM. He uploaded the ECM info today to start a baseline. My ECM has been F37ed though. Kerma is looking at getting some nozzles and he seemed interested in possibly making some intercooler pipes instead of those lame hoses

. I told Kerma that the Holy Grail is the TCM. We will open it up to see what kind of hardware is in the TCM when we get a Saturday free to take it apart. Someone here might know though. Possibly gmctd?

Basicly I told Kerma, if the tranny can't put down the power the mods won't mean much. We may be working on another option for a TC other than Suncoast. If that doesn't work out then I will be doing the suncoast so we can put larger injectors, and chip the thing and see what this beast will do!!! (hopefully we can get the tranny figured out, at least get it to the pre F37 tune). I hate having to accelerate to 65 and then slow down to 60 :evil:

!

Should I start a new post on this subject, something related to Kerma's aligator tuning?

gmctd · **Posted:** Sun Mar 23, 2008 1:41 am

I think a new thread would be best, easier to move to CRD TECH forum on successful conclusion - and it is Motorola MC68HC11\deriv

chrispitude · **Posted:** Sun Mar 23, 2008 8:21 am

Start simple, guys! Get an ECU tune out there that puts down the power, and has all the functionality of the SEGR. Next, a TCM flash with no torque neutering but with the F37 shift points would be good. After that, go nuts.

- Chris

honey_don't · **Posted:** Sun Mar 23, 2008 10:05 pm

MTB_TDI wrote:

Kerma is looking at getting some nozzles...

This will be very interesting- Kerma is the US distributor for Fratelli Bosio nozzles which are made in the same region of Italy that VM is located in. I'd say the likelihood of them having some options for the CRD is good. I've run two different sizes of bosio nozzles in the TDI and both yielded a significant improvement in power with the same or better MPGs.

MTB_TDI · **Posted:** Tue Mar 25, 2008 10:15 pm

More news. He said that he has a tune for me to try. I am going to try to go out there on Friday and get the Qloader working. Then we can work on it via email. We hope the TC will be able to hold up. I really need to get a suncoast TC. We are starting out mellow at first. He thinks the egr will be shut off but we need to verify that.

I'll keep you posted!!!

Also, check here for more info on the F37 tuning info.

http://www.lostjeeps.com/forum/phpBB3/vie ... 692#316692

chrispitude · **Posted:** Wed Mar 26, 2008 6:48 am

Hi MTB_TDI,

The progress on the tune sounds great! If you are looking for another test mule, I've got a Suncoast converter in our CRD, and I've got a Scangauge II so I can monitor the intake temperature to see if the EGR is active.

Please pass this along to Kerma - when making tunes, please keep in mind us folks who tow. We need a tune which is strong enough to help pull a 5000lb trailer, but still not blow quarts of oil into the CCV filter or cause the engine to overheat. I also hope Kerma can find a way to keep the intake ACV always open when not in park.

- Chris

Joe Romas · **Posted:** Wed Mar 26, 2008 8:09 am

I read in the FSM that our nozzles each have a calibration number on them and the ECM must be programmed with this information :wink:

I wonder if it was done at the factory initially and if dealers when they are replacing them are doing so :?:

Along those lines how would anyone but a dealer be able to do this. And if it's possible to "tune" just by plugging in a different number :lol:

gmctd · **Posted:** Wed Mar 26, 2008 12:10 pm

The purpose of entering injector calibration data is for precise timing to ensure injected fuel volume is within spec - entering the impedance and reaction time of each injector tunes each cylinder output to exactly match the other three cylinders, much like blueprinting a race engine = max efficiency - it'd be like finding an exorbitantly expensive needle in a haystack to select injectors with greater rates than others, plus the differences are infinitesimal, so you wouldn't feel any difference, except maybe in idle speed and smoothness - if you could find identical injectors with larger nozzles from a larger-displacement engine, they would provide increased output that you could feel - barring that discovery, it'd be best to adjust rates via software, or offsetting the RPS, as the power modules do

MTB_TDI · **Posted:** Sat Mar 29, 2008 10:12 am

We got the Q Loader working last night and put tried two tunes out. The first tune was the first stab that Alligator tried. It had a bunch of low end grunt but laid down on the top end.

The second tune was one that Charlie tweeked a bit. It definitely had more upper end grunt. He said that the second tune should get better economy though. I think I liked the 1st tune better but I can always switch between the 3 tunes (stock, mod1 and mod2). I am going to experiment and drive them and see which ones work better.

Both tunes are supposed to have the EGR turned off. I had no CEL. I want to verify that the EGR isn't working just to make sure. How could I do that? I do have Vag-Com, it is capable of loggin data in OBD II. Or, could I unplug it and see if I get a CEL?

We took the ECM and the TCM out of the Rig. We took the ECM out of the rig to have a back up. The TCM didn't have a M with a circle around it on it anywhere. We are going to have to get some help on this.

What we need is to have one of Charlie's "tools" hooked up while someone gets their jeep flashed from the DC scan tool. Charlie's "tool" will see what it going on and get more info.
Does anyone know any cool techs at the Dealer?

Another question. What is the rail pressure relief valve set at?

fastRob · **Posted:** Sat Mar 29, 2008 10:40 am

[quote="MTB_TDI"...................................

Both tunes are supposed to have the EGR turned off. I had no CEL. I want to verify that the EGR isn't working just to make sure. How could I do that? I do have Vag-Com, it is capable of loggin data in OBD II. Or, could I unplug it and see if I get a CEL?

....................................................W[/quote]

Sounds Great!
Your efforts are appreciated.
Does the EGR open at start and shutdown or is it off completely?
There are at least 3 EGR functions that I know of: quicker warm up, NOx reductions and quick shutdown.
We want the good not the ugly, right?

Goglio704 · **Posted:** Sat Mar 29, 2008 10:43 am

EGR has nothing to do with shutdown. The EGR flow control, or throttle valve in the intake does close at shutdown. This reduced the amount of air available on the compression stroke and creates a soft stop.

Performance tuning that deletes the EGR w/o CEL

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