I already have installed Genboard v3 in VW Scirocco, with 1.8 20VT engine. Lots of configuration to be done.
Previously equipped with Megasquirt v2.2 with Extra code. Continuous problems with ecu changing settings by itself. Also coil charge times were not what they should've been (difference between MT readings and reality), so fed up with melted coils.
System consists of:
- VW Scirocco GTX 16V
- Installed Seat 4-cyl 1.8l 20V turbo engine
- Vems v3.3, firmware 1.0.69
- OEM VW sensors, IAT, CLT, TPS, CamSync
- 2.0 16V VW engine Hall-sensor for primary trigger
- 60-2 trigger wheel
- Polo GTI wasted spark coilpack
- Standard 1-3-4-2 firing order
- please add the mct (tables dump too). The j,n,l tables not badly needed (if you want to keep those secret for some reason). But h (ignout sequence) would be important
- also, cyl firing order and ignition (+injector) wiring, to verify h tables.
Injectors wired from A to D (will add pin#s later), configured to fire 2 banks (00..01) altenating.
Ignition coils wired to Ign00(pin35) and Ign5(pin12). Pin 12 used, beacuse for some reason, couldn't get spark from Ign01(pin33). This shouldn't be a problem, should it? These all are low level outputs anyway. Coilpack has built-in IGBTs.
- I'm working on exactly the same project nowadays - MembersPage/Fero
Here I will show my configurations for Megatune. I'll try and explain every option possible. I will update when i find answers to my own questions first. My opinion is, this Wiki is like hell to try and find something usefull. It took me more than hour to find info how to configure fuel pump output to work.
- in megatune the fuelpump output is configurable. GenBoard/Manual/DigitalOut/Table is the table most of us uses during planning (and even keeping a hardcopy during install). The EC36+EC18 pinout can be found at several places, the "external interface" of the GenBoard/Manual (see header link DocsPage)
These pages are good starting points: GenBoard/Manual and MembersPage/PhatBob/UserGuide - Mattias
At the moment, i have problem with erratic ign advance. Car runs fine. If advance is forced (terminal command) to 10deg, it is 10deg. But when forced 20 or 25deg, it really is 25 or 30deg.
Here's how it went:
- set 10deg, true 1deg
- set 15deg, true 11deg
- set 20deg, true 21deg
- set 25deg, true 30deg
Assuming info on refcard.pdf means, mdaxx = force advance xx units, where 1 unit means 0.25deg. So 0x28 equals 10deg, 0x3c equals 15deg, 0x50 equals 20deg. => exactly. More notes:
- mda00 is special, switches off forced ignadv.set
- set ign_balance=00 while setting base timing with mda... (ign_balance only available in 1.0.x firmware, used for ALS max retard, recommended value is 20..30 degrees, but only after base timing is established).
0x50 = 5 x 16 = 80 => 80 x 0.25 = 20 deg. True. Do you have any wheel errors ? 2nd or 3rd LCD display. - Mattias
Megatune should show trigger errors aswell..??
On some page was told that mlp01 takes me to the page with errors and counters, but theres just bunch of hex. How do i know which means what?
- TPS settings must be manually configured, auto cal in MT does not work
- MAP sensor settings
- Should MAP range be 250 or 255 for MPX4250??
- Injection type
- Is this really needed in MT? What for?
- Constant for RPM calc
- Whats the point in this? If needed, could be calculated internally. Found that should be 3000 for 4-cyl and 2000 for 6-cyl.
- Battery calibration, used to adjust voltage gauge to read actual supply voltage.
