Opel EDC16C39 Turbo Diesel Tuning

[VX L67 Getrag]

Hey All,

Just wondering if anyone has tinkered with the Bosch EDC16C39 which is pretty common to a lot of opel turbo diesels from 2005 to 2015 I believe, I've been mucking around with my 2007 AH Astra with 1.9L & trying to figure out the axis calcultions, most of the RPM seem to be set as they are but things like Injection curve main tables which there is 5 of them I believe they are RPM Vs Torque 16x16...
Torque native floating point (16bit) figures are 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000, 3500, 4000, 5000, 6000 & 7000

But figuring out all the axis would be nice, I might have to find a good script file & use winOLS.

[VX L67 Getrag]

probably should have just posted this to be easier!

[VX L67 Getrag]

As a bit of a comparison I opened the 2.8L Colorado with HPtuners & had a binary file for the same model & was able to identify how they have the map setup for same ecu, but it looks like it's a bit more straight forward with just divide by 10... but I can't see the Opel ever getting close to 700Nm...haha

[kur4o]

Axis are set as tables usually before the main table. They have their own math scaling, and can be easily rescaled.

Here some files you can use for template in universal patcher.

Open the bin in tuner->than go to xml tab->load tablelist->select the included xml file.

[VX L67 Getrag]

AHHH COOL, thank you VERY much!

I just had a quick look & looks like it could be the table at 1CDE06 using universal patcher, now I just need to figure out where they get those calculations for those axis... got to love it when they 16x16 tables as it's just the 2 x 2 seperate lines before the table for each axis!

[VX L67 Getrag]

I think I found the exact table I'm after & possibly the info for it... in bin you supplied the actual table starts at 1D06E4, so the axis are the 4 lines before that & think it should be similar to what I have taken a screenshot of below.

[VX L67 Getrag]

So it's actually RPM Vs MM^3/cyc whatever that is... now I need to find the best way to log it to capture to know exactly where I'm modifying!

[kur4o]

Do you have a stock bin of your pcm. We can port some tables[using the extra offset field] from the xml file for quick compare.

As you can see most 3dtables starts with 2-4 bytes header, than 2 axis tables , than the actual table. Usually the header contains data for the axis table size and length.

On this platform there is some exclusions with axis tables set at different address, but they are only few, and for some reason the start address is wrong. You can see them in AXIS_PTS category[start address is not correct so don`t use them].

[VX L67 Getrag]

Yeah here is the stock tune & tuned file which is pretty good & not trying to get fuel consumption(get 800Km out of 50Litres of Diesel) but trying to get less smoke(goes to 12:1 on 100% load at 1250rpm & then settles after 5 seconds on the throttle eventually to around 18:1).

[VX L67 Getrag]

OK so I did a MAJOR change to try & stop the hi load injection curve going to 12:1 & soot but it seemed to make next to no difference(on the wideband it looks no different but it "SEEMS" to have less soot looking out the back)... there has got to be another part of the code that forces HIGH fuel to bring on boost at low RPM as it settles to 15:1 within a few seconds still on load & then close to 18:1 on longer!