Hellen128Merc on my w202 C220

[md_sanci]

Finally reached the best milestone with my car, i have a plug and play ecu from rusEFI, and it is all coming together.

Tested till now:
- map sensor working
- CLT
- Injector outputs (only 4 in my case)
- ignition - i use the original coils so IGBT soldered on the board
- VR input
- IAT
- PPS
- ETB -> here i would like to contribute on introducing default settings in the firmware, in work

Todo:
- CAN communication
- SDCARD (for now i have error in console that card is full, maybe try another sd card)
- onboard WBO to be wired in and tested
- FAN control (my car uses PWM to signal SAM module on how to control fan, i used in the past FSIO)
- starter button and starter relay to be wired
- USB communication/Bluetooth to be added/ Serial converter?

Tune link

Crancking csv attached.

[AndreyB]

Thank you for betting on Hellen

[md_sanci]

Progress:

- CAN communication
- onboard WBO
- FAN control (my car uses PWM to signal SAM module on how to control fan, i used in the past FSIO)
- starter button and starter relay to be wired

Under investigation
- SDCARD (for now i have error in console that card is full, maybe try another sd card)
- USB communication -> Connection is better with older version of TS running on linux
- Bluetooth/Serial converter - wired in but no communication (enabled settings with console) to be checked in more details

Next:
- Knock reports -> harness, schematic, code looks ok at the first glance.
- VVT (used with FSIO, maybe port it to LUA)
- oil pressure sensor
- AC compressor wire (to add extra PID to idle)

[RoadRaceJosh]

Excellent news and congratulations! I placed my Hellen order today, but my use case is different. I'm swapping an M111.975 into a 190E 2.3-16 so this won't be nearly as PnP for me. There is a 2000 model-year C230 Kompressor in a self-serve wrecking yard nearby so I'm hoping to harvest the wiring and accessories I need from that. I bought my engine without a supercharger so I don't have to worry about controlling that, but eventually will turbocharge it.

[md_sanci]

So today first drive to work and back:

Log

Till now everything works fine, i have an issue with my O2 sensor i have to restart the car after a few minutes of idling, but that will be resolved with a new sensor.

Time to play with VVT and AC input to make the car usable every day, and .... VE ))

New posts later, when i have a few km's with hellen128.

PS. due to a sw bug i managed to blow up one coil driver, so NOTE: do not stop engine from TS, use the key, stm will be powered by usb, so it will write all data.

Idle control for now is manual + timing pid in idle, car idles nicely around 800RPM so that is good.

[md_sanci]

Excellent news and congratulations! I placed my Hellen order today, but my use case is different. I'm swapping an M111.975 into a 190E 2.3-16 so this won't be nearly as PnP for me. There is a 2000 model-year C230 Kompressor in a self-serve wrecking yard nearby so I'm hoping to harvest the wiring and accessories I need from that. I bought my engine without a supercharger so I don't have to worry about controlling that, but eventually will turbocharge it.

If you get the harness, this ecu is plug and play for you, check the coils you have on the engine, my m111.961 engine had coils under the intake manifold, but the original m111.921 engine had wasted spark coils in the cylinder head cover. so i kept the head cover from the 921 and the coils as well. Now if you open the hood, the car looks original, with no mods to the naked eye

About Kompressor solenoid... i have a kompressor without solenoid, and only a bypass valve. But that will be a new chapter when i finally decide to make that step, for now the NA engine is way more that i can do right now in terms of learning and testing.

[AndreyB]

PS. due to a sw bug i managed to blow up one coil driver, so NOTE: do not stop engine from TS, use the key, stm will be powered by usb, so it will write all data.

Sorry about this Matt is working on it under https://github.com/rusefi/rusefi/pull/3180

[AndreyB]

So today first drive to work and back

Is your board using MAX9926 or https://github.com/mck1117/vr-interface? Trying to figure out if you've just proved vr-interface to be definitely working in real life?

[mck1117]

His board is configured for magical new VR interface.

Jimmy's is too, so we've run two engines on it now!

[md_sanci]

yes the magica VR works fine.

First shot, thrashold was set to 0.4 and after around 20Km drive i started to have rpm jumps.

The way back i configured it to 0.6V this was better, did 20km + 30 km then it started to make rpm jumps.

Now it is from 0.6 to 1.2v from low rpm to 7000rpm increasing. This was way better.

Next week i plan to drive way more, so i can get more logs and feedback.

Error code 9010 was the errors i noticed in log

[AndreyB]

Please upload your current tune and I will update VR threshold defaults

[AndreyB]

Alex how much do you know about OEM immobilizer and electronic ignition lock? Who tells whom what? I assume there is some cryptography going on there and nothing we can do?

[augenblick]

http://benzbits.com/DAS.pdf

Short answer, it depends on model/year. Newer stuff ~2005+ I have no idea, but my guess is we're talking removing/bypassing several different systems. I've seen a handful of youtubes on dealing with the electronic steering lock, but have not personally touched one. I *think* the system is self contained enough that it won't completely freak out over not seeing the Engine Control it expects.

For Das 3 (The most complicated we're liable to deal with for the time being):

EZS is Electronic Ignition Switch, ELV is Electronic Column Lock or somesuch.
"Function description of engine starting
Drive authorization is verified after the key is
inserted into the EZS. Inductive energy is trans-
ferred to the key and a check is made between the
key and EZS. If an authorized key is detected, the
ELV (if installed) enables the steering and relays an
acknowledgment signal to the EZS. The EZS releases the key lock. The key can then be turned
to the ignition "on" position and the engine control
unit is supplied with power.

The key lock in the EZS was omitted as of the intro-
duction of model 204 (March 2007).

If the ELV does not unlock or if the key is defective,
the key can be turned but the ignition is not
switched on. If a key which does not belong to the
vehicle is used, the fault message "Key does not belong to vehicle" appears on the instrument
cluster.

After the ignition is switched on, the authentication
test is performed between the engine control unit
and the EZS. If this is successful, the engine control
unit issues the start enable signal."

[md_sanci]

On my 202 there is DAS, car works fine, the only issue is that cranck and engine stop is sent by can, i did not find the message and aignal values, i recorded can trace, but not yet managed to decode it correctly.

Right now i installed a start button, when key is off, there is no power to ecu so it will shut down.

Network seems to sleep in the car since there is no battery drained after aitting for a long time.

Tipic is still of interres, but no time and info to make it more plug and play, and this is only for facelift, the older ones have hw pin not can message, so conversion is simple.

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