Firmware updates

[Mopar1973Man]

I'm curious if there is a update of firmware for the Quadzilla. I've lost count of what version I've got and what is the current version.

 

I've got fueling issue in the 1000 to 1200 RPM range. For some reason Quadzilla oscillates up and down regardless of timing. You can watch engine load jumping up and down.

[Dieselfuture]

Pretty sure mine's doing the same thing, I thought it was just ECM fighting with the quad thing

[Me78569]

Ecm and Quad fighting 

[Quadzilla Power]

@Mopar1973Man We are still only sending out boards with V2.7.7. However the V2.8.5 is available for download!

[Mopar1973Man]

Ah... I was hoping there was an update. Thanks, I'll give that a try tomorrow.

 

I assume its this update then...

 

Opps, that's a 2.8.4... @Quadzilla Power you need to upload the 2.8.5 here on M73M.com...

[Mopar1973Man]

Ok. Update of the firmware is done. I'll report back after today.

[Me78569]

The fueling oddities will still exist in the sub 1200 rpm area that section of the code has not been changed in a long time.  

 

Manual trucks ecm try very hard to control fueling at low rpms.  When it senses the quad pulling fuel the ecm can try and add fueling back in an effort to prevent rpms from dropping.

[Mopar1973Man]

Yeah it does. Not as bad as the previous but still there. You'll get the up and pulses around 1,200 RPM range. Launching way better. 

 

Where it stands out is cruising 30 MPH through Council or Ontario and it starts it mild bucking gotta step up to 35 MPH or drop a gear and do 25 MPH.

[Me78569]

Yep,  

 

If I had a manual truck when I was coding I might have been able to fix it, but the auto doesn't have the issue so I couldn't code and test. 

[Dieselfuture]

We'll just call it quad ghost 

[Mopar1973Man]

I was think to change the 0 psi position to 100%.

 

[Mopar1973Man]

Ok this is what I've done and found out. The low end bucking (ECM fight) you can reduce it quite a bit if you start 0 PSI at 100%. This is the new fuel curve I'm using and works fairly well.

 

100, 90, 85... (+1 till 12 PSI), 96 ,98, 100 (at 15 PSI)

 

There is a reason for this I found that you want to cross your wiretap start at 100% then it much smoother. 

 

 

[Dieselfuture]

It's amazing how many combinations  you can make up with the quad V2 tuning.

[Mopar1973Man]

That worked out fairly good. Bit smoky not bad. I think it will help with the MPG tune.