New Beta Wari 1.14 and Firmware 1.0R

[saboteur]

Any plans for a dwell vs voltage correction table?

[Nick_R]

Hi Saboteur,

Our e1280s Super ECU has that ability. But even so, nobody has ever requested that feature before. We don't like to add new features without enough demand / justification since any new feature has to be tested, documented, supported etc.

It also complicates troubleshooting where someone has set up their table incorrectly and finds their car stalls when they switch the headlights on or something weird like that.

-Nick (Adaptronic)

[Cobber]

Fan problem is back.

I have found that if the 1 second temperature filter is applied and the water temperature is above minimum water temp (cold rev limit or adaptive learning) the fans will come on on pre start up the same time as the fuel pump.

If the engine is cold the fans do not come on on pre start up.

To fix it I have un checked the 1 second filter for temperature and the fans don't come on on pre start when th engine is warm.

Not a real big problem but there is a bug in there somewhere.

The previous WARI version I did not use this feature that is why the problem went away when I went to an older version of the WARI and tune.

HAPPY NEW YEAR.

[rob_k]

ahhh I think I may have an idea why that might be happening. It could be (maybe?) that the water temp starts out high initially (either due to the way the voltage rails behave at power-on, or due to the initial water temp value when the microcontroller resets) and it takes a second or so for the firmware to filter it down to the real value. I've been off work for the last week, but I'll look into this next week.

[Cobber]

Thanks Rob,

Your head must be full of logic and or maps, how the hell do you sleep at night with all that buzzing around in your brain.

Also forgot to mention that if I check the 1 second temp filter box when the water temp is above the minimum threshold but below the fan on temp the fans will also click in for a second when the box is initially checked.

Sleep well, and hope you had a good Christams and new year.

[marco]

Hi,
my engine run with Stage Injectors and tried to tick the VE box for secondary injector size but this is not possible.
Or I make a mistake in reasoning ?

Thank
Marco

[rob_k]

Hi Marco,

We haven't implemented staged injection in VE mode, but we may later.

Cheers
Rob

[marco]

Hi Rob,
I'm relieved to hear that because Itried so many things


Thanks
Marco

[Jimbo]

Just tried using VE for fuel map 1. Converted ok, values looked sensible but when I tried starting up, the engine stalled after half a second. Only difference was the use of VE, had to up the values around the idle point to ~100 from ~65.

The engine and injector size is setup with correct values ([MX5] 1800, 550cc) so after what Mi5 said about the MX5s fuel pressure and 550s behaving more like 640s I'm wondering if my fuel pressure is actually way down?

[Woody]

Hi all,

I just noticed a new version of Wari (V3) what has been changed from V2?

Cheers,

Diederick

[rob_k]

Hi Diederick,

It only has one change, which will hardly affect anyone, but it is an important change nonetheless.
Basically, of all the thousands of ECUs that we've sold, about 4 of them were installed in vehicles where the electrical interference was enough to corrupt parts of the settings.
We basically made a particular part of the firmware code more robust to prevent this problem.

Cheers
Rob

[Malfie]

Hey Rob,

I've tied the new firmware and it looks great!

I have a small issue with the VE Tuning mode...

When i convert my own maps, it just won't start, not getting enough fuel...

When i try the way you tol, setting the entire map at 80% its starts, but runs way to lean..., at 80% dutycycle...!?

When i put the entire map at 110% it idles good at 14,7AFR.

Any ideas because idling at 110 % doesn't seem right to me?

Í have a feeling that the ECU doesn't recognizes the fact it's a 6 cilinder engine with relatively small injectors...

Because a 2.0 4 cilinder engine has much bigger injectors which in my case would run at a far smaller duty cycle...

Just a thought...

Thnx again in advance!

[y8s]

Malfie, I think you're confusing Volumetric Efficiency with Duty Cycle.  Volumetric efficiency tuning is based on the assumption that an engine needs an amount of fuel proportional to load and RPM (ie mass air flow through the engine).  The nominal fuel multiplier is calculated internally when you put in your engine parameters and then the 3D fuel  map is used to express a percentage of nominal fuel requirement for a given load and RPM.

Since no engine has an absolutely constant volumetric efficiency at all manifold pressures or RPMs, the maps are never flat values, but flat/80% is a reasonable starting point.

An average engine may be close to 80% at any given point.  An efficient engine can reach or exceed 100% volumetric efficiency at peak torque.  A turbocharged engine will usually exceed 100% by a large margin.

All those percentages mean is how far off you are from an idealized engine of your engine's size.

[fauxpas]

Í have a feeling that the ECU doesn't recognizes the fact it's a 6 cilinder engine with relatively small injectors...

If you input the engine size and injector size why would that be an issue?

[Malfie]

oke maybe i'm wrong, it was just a guess...

But i was just thinking, and i'll try to explain what's in my head.

The VE system calculates the injector pulses at engine size and injector size...

This is just speculation with NO actual numbers...

So every revolution the engine sucks up an amound of air, it needs a  sertain amound of fuel to run.

The ECU "knows" that amound by experience and testing, calculated by a number of variables...

So, for example, a  2.0 litre four cilinder engine sucks up just say X litres of air at idle, and the injector size is 550 cc, and it runs at

maybe 10% of its injector duty cycle.

If my engine, also a two litre, idles, it sucks up the exact same amound of air, the the same amound of fuel, but the injector size

is way smaller, so if the ECU doesn't "see" its a six cilinder engine, it will runn the injectors like a four cilinder, wich are way to small for a

four cilinder...

And that could be a reason why my engine won't idle up until 110% injector duty cycle....

It's just about the total amound of air and fuel, 2.0 litre four cilinder 550cc injectors,

4x550cc=2200cc in total at full blast,

6x360cc=2160cc in total at full blast,

It's allmost the same amound, i can believe that,

But when i do 4x360=1440cc at full blast...

That's up to 44% less fuel what i have to compensate to get a good mixture...