BRZEdit (ECUEdit)

[Shankenstein]

Is there a thorough explanation of what each parameter means... and how they interact?

I'll give it a guess (from my experience with Ford ECU's).
Open-Loop Fueling:
MAF * Scaling Factor --> Load
Load + VVT Trim + RPM --> Open Loop Fuel Map --> Fuel Mass
Fuel Mass + Pressure + Battery Voltage + IAT --> Direct Inj PWs + Port Inj PWs (split injection may be enabled)

Closed-Loop Fueling:
Adaptive AFR Target + AFR Feedback --> Fuel Mass Trim
This probably has catalyst cycling built in.

Torque Control:
Pedal Position --> Torque Request
Torque Request - Calculated Torque --> Delta MAF
Delta MAF + Current MAF --> Delta Throttle Angle

Active Knock Control:
IAT + Load + RPM --> Open-Loop Ignition Timing
OL Ignition Timing + Time Since Knock * Ignition Advance/Retard Rates --> Closed-Loop Ignition Timing

Obviously I'm not including anything related to idle, WOT, etc that involves a threshold or limit. Can somebody clarify the structuring the parameters for me?

[mad_sb]

Originally Posted by Z0rr0

Here is a list of accessible maps i got from epifan.
Interestingly enough, there is no MAP Sensor scaling. Not good news for the boosted crowd.

...

Did you happen to get a list of loggable params? Mainly want to see if front o2 is included since it is a wide range sensor (12.0 - 20.0 AFR).

[xjohnx]

Weird, his screenshots show "Air Flow Sensor Scaling" in the top right. Then again, none of the screenshots are from a BRZ, all WRX.

[Z0rr0]

Originally Posted by mad_sb

Did you happen to get a list of loggable params? Mainly want to see if front o2 is included since it is a wide range sensor (12.0 - 20.0 AFR).

I did not get a list of log-able params. Sorry.
If Front O2 is not included, i would be very surprised.

[pozer]

...

[xjohnx]

i hope to hell you guys know what you're doing.

[pozer]

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[Z0rr0]

SCREENSHOTS. (please)

[pozer]

....

[xwd]

So have you tried changing something and reflashing? Like say the rev limiter or something simple like that?

[Z0rr0]

I'm not sure exactly what i want to see...
Is there any indication how the ECU deals with knock?
how about MAF sensor scaling?
I assume "Fuel Map" is open loop fueling?

[Z0rr0]

can we turn off the catalyst DTCs?

[xwd]

Originally Posted by Shankenstein

Is there a thorough explanation of what each parameter means... and how they interact?

I'll give it a guess (from my experience with Ford ECU's).
Open-Loop Fueling:
MAF * Scaling Factor --> Load
Load + VVT Trim + RPM --> Open Loop Fuel Map --> Fuel Mass
Fuel Mass + Pressure + Battery Voltage + IAT --> Direct Inj PWs + Port Inj PWs (split injection may be enabled)

Closed-Loop Fueling:
Adaptive AFR Target + AFR Feedback --> Fuel Mass Trim
This probably has catalyst cycling built in.

Torque Control:
Pedal Position --> Torque Request
Torque Request - Calculated Torque --> Delta MAF
Delta MAF + Current MAF --> Delta Throttle Angle

Active Knock Control:
IAT + Load + RPM --> Open-Loop Ignition Timing
OL Ignition Timing + Time Since Knock * Ignition Advance/Retard Rates --> Closed-Loop Ignition Timing

Obviously I'm not including anything related to idle, WOT, etc that involves a threshold or limit. Can somebody clarify the structuring the parameters for me?

It's a Denso ECU and similar to other Subaru ECUs so there is a lot of information out there from the open source. The forums at openecu.org or romraider.com are probably good places to start. The big difference however is the use of Direct Injection on this engine.

I am still a little surprised at the pricing but I guess the point was to compete directly with Ecutek. The cost for the personal edition plus the cable is about $650 with the ability to edit and trade maps, etc.

[xjohnx]

Does it offer on-the-fly changes? or require the map to be uploaded after each change?

any of the major tuners plan on tuning on this platform as well? May make it easier to expand their customer base due to lower point of entry, but only if the feature sets are comparable (which it currently looks like ECUtek has the advantage there.)