New software 3.053 available!

Hi, me too expecting problems with “Help”. When i press Help on any map window it says "Work in progress… ", then not closing Help menu i press to anything on drop down menu left side and Help appears.

That’s a bug. It will be fixed in the next build.

I’ve done several tests, changed the injection angle, injector dead time, and tried changing the CCM and fueling map/barometer.
The same setup with 4.043 EGT 520/550 degrees Celsius but lambda 0.94 and little misfire 2nd cylinder.
4.053 Lambda 0.84 and EGT 480/490 degrees Celsius… I’m wondering whether to use new, different Bosch injectors but when the motor work well don’t smoke
To clear up my doubt, I want to try to measure ml injector flow with my wire… I’ve never tried it and it clears up the doubt of injector wire problems.

V3 Aux Output Bug.emub3 (66.4 KB)
I think i found a bug that stops the ecu from properly turning off. Has to do with functions.
When downgrading to v2 firmware it turns off the ecu properly no matter what

In V3 one of the outputs backfeed and power up the ECU.
So probably the otputs state in v2 and v3 is different in your config.

How is your power and battery connected ? The battery should be connected to constant 12V and ign switch should be connected to the ign swith that it cuts power to ECU. No other devices like relays and coils should be connected to ing switch EMU wire.

Try to increase dwell time on idle to 150%.
Also you can swap injectors from cyl 2 to any other cylinder and check if it change the misfire cylinder.

Constant 12v pin is directly connected to battery terminal. IGN Switch is connected to a fused relay that is turned on by ignition key position. All low current draw components (solenoids, wideband etc) are also connected via the same relay that is turned ON and OFF with the ignition switch. I think that is the issue? Why was it not an issue in V2?

When you cut the power the ECU will shut donwn.
There are 2 exception:

  1. Delayed turn off is active (it isnt in your calibration).
  2. Something is backfeeding.

You can check the voltage at ign swtich EMU input to see what is the voltage when you turn the ignition off.

The outputs state in V2 and V3 must differ (eg. due to different configuration / strategies behaviour) and something is backfeeding.

The voltage at ign switch pin is 7v when it should be zero with the IGN Switch and AUX 3pin plugged in the ecu. But the voltage is not coming from the ignition switch wire but rather from the ecu itself (atleast thats my guess) because when i only connect the ignition switch pin on the grey connector the ECU turns off perfectly fine. But as soon as i add the aux 3 pin the ecu wont turn off. The funny thing tho is when try to measure voltage at aux 3 pin with ignition off its always at 0 volts.
How is it even possible that aux channels backfeed the ecu? I thought theres a MOSFET with diode inside? @Jadzwin_ECUMASTER

What is activated by the Aux3 ?

What about not used hbridges ?
All flyback diodes are connecred to battery voltage pin. The ignition switch just activates the internal ecu switch. So somerhing must be fonnected to igntion switch EMU input

Sensor offset has returned on the Oil pressure and fuel pressure channels.

Approx +1bar offset appeared on Haltech dash when I upgraded to 3.53 (from 3.41)

thank you for reporting.
I will fix it for next build.

What is your CAN config for the Haltech Dash?

While you’re at it, would it be possible to fix the scaling of the Fiat 500 Abarth boost gauge? In V2 it’s correct, but in V3 the gauge displays a small fraction of actual boost.

Perhaps if that value is also used as an indicator of engine load to the ABS, it could also explain why hill start is still not working as it did in V2? Doesn’t seem likely but there’s definitely a chance.

I will compare it with V2 otuput data. What fiat model you use (EUR 5, 6 or US )

My model is US, but the US car should be scaled identically to the euro models. For my car, the scaling is incorrect when using all presets (EUR5, EUR6, and US).

On V2, hill start and the boost gauge worked correctly on my US car while using the EUR5 and EUR6 presets, so it looks like all 3 should be set to the same as V2.

Thanks Jakub!

i got a question. is it already possible to get an obd2 answer like a stock ecu? like when you are in a emission test, the tester looks for the stock ecu and gets a feedback about lambda etc. i just know some other ecus already have this option to simulate a stock ecu. here in germany its really hard to get TUV if the ecu is not been detected by the emission tester.

Here you go. You need to enable OBD2 support in CAN options.
You need also enter your car VIN number in Tools/Vehicle VIN

What is going on here?

20250721_1952.emublog3 (4.1 MB)
QNC10_Passo_K3VET.emub3 (68.6 KB)