Image that help

I would to leave an image that will help you to understand the ecu. With this image we can get an idea of how maps work in the ecu

So when you modify the maps in the ecu you will need to try obtain this graphs with your modified maps.
You can download the full image there.

Logs on vagcom

Probably already seen or heard about make logs, made ​​by vagcom, this is an important tool and one of the ways we have to help us know how the car are and how we can improve.
I always advise to make logs before and after any changes.
We can get information about boost pressure (boost specified vs actual boost), IQ (injection quantity) (IQ requested vs Actual IQ), ..., and with this information know where you can improve.


You can download this pdf that showing all you need to make logs with vagcom.
Download

When you save the vagcom log file you can see in excel, but is more dificult to interpret, so you can download this software that show your logs simplest way to understand.
Download

Types of Edc15

how we know, nor all cars have the same ECU, the bosch, in diesel engines have Edc15, Edc16 and Edc17.

But the Edc15 have many types, that change according to the engine specifications.

Would you like to leave here an idea of the various types of Edc15:

• Edc15C
• Edc15M
• Edc15P
• Edc15V

Inside this types there are evolutions / upgrades!

you can download this file that show the many types of edc15 that exist and their upgrades / evolutions.

Download

Abbreviations

Often when we read technical information in books or even on websites and forums are faced with some limitations in terms of using abbreviations, which makes us look like they're talking in code.
So i will leave here some of the meanings of the abbreviations for them to take note and so learn to decode. : D




DW - Driver wish
TI - Injection Time ou TD - Injection Duration
IQ - Injection Quantity
SOI - Start of Injection
EOI - End of Injection
EGT - Exhaust gas temperature
EGR - exhaust gas recirculation
REV - Revolutions
RPM - Revolutions per minute
DPF - Diesel particles filter
FAP - Filter particles
SVBL - Single value boost limiter
SVRL - Single value rail pressure limiter
MAP - Manifold absolute pressure
MAF - Mass air flow
AFR - Air fuel ratio
IAT - Intake air temperature
TDC - Top Dead Center
        BTDC - Before Top Dead Center
        ATDC - After Top Dead Center

I will add more as i remember or someone suggest!