So I guess I found another 'wtf' moment with the latest update... I'm trying to dial in the latency and it's not working like it used to...

See attached image -- shouldn't the two 14V values be the same as they used to be in older versions? Which one is lying?

Also, what affect does the new 'minimum latency' setting have? It didn't used to be there...before I had assumed according to DW (Mike) the 14V voltage was the minimum...

 

^^^ There has been an update on ROM editor with latencies and how the ECU interprets them. Below is part of an Email that was sent out to the Pro Tuners

First is the injector latency wizard. We found that the latency values that the ECU is using are actually only 50% of the real world opening time. The wizard has been updated to calculate the real world opening times instead of the ECU's value of 50% of actual. So if you open an old base tune from a car that you adjusted and the latencies look really big now, that's why.

So all you need to do is make the values next to the voltage values on the left match the latencies you are actually trying to run. Then up in the area you circled, that will equal half of the latency next to the 14v value.

 

OK... I get what you're saying but that is very strange! Even the chart doesn't line up with the calculated values.

How about the injector minimum? Set it to say, the 15V value on the spec sheet? I don't recall this being there before...

 

You might not get the columns on the left to match the actual DW values 100% Thats cause you can only adjust the amount it varies from volt to volt with one value in UPREV. Usually I make the 14v and the 13v values equal the values on the injectors and then 12v and below may differ a little.

As far as the Injector minimum... do you mean the injector minimum under the Fuel section? That has always been there. I interpret that as the minimum value the ECU will control the injectors in Millisec. Stock is 2.4ms or so i beleive and when you run larger injectors at idle it isn't uncommon to run less then that. So with larger injector cars i set that to 1.5ms...

 

Cool...I'm pestering jared to put me on the mail list so I don't have to keep asking dumb Q's when they change things.

Jared confirmed the two values I circled should be equal so he's filing a bug report +1 for djamps the idiot LOL.

 

^^^ Nice...they have been good about taking care of those things!!!

 

Last question... should the injector minimum also be halved??

If you load up the stock map you can see the minimum is 2.4ms which wouldn't be correct given the email from uprev stating that the stock injectors are really half that...

I have ALWAYS had a rich decel issue even with the 440s and now worse on the 600s...I wonder if this is part of the prob?

 

So the individuals who have spent $700 for the tuner license do not get info on the updates via e-mail from Uprev like their affiliated pro-tuners do? WTF! REALY!!! Why not? Essentially self tuners are like pro-tuners but with just one license. Really!

 

Pretty much.... Makes you feel so special doesn't it

 

No kidding...

Suddenly this Excel sheet I created over a year ago makes sense. I was trying (unsuccessfully) to figure out why the latency values shown in the "stock" Osiris ROM were so far off from the values that DeatschWerks gave me for the stock injectors (and their 600's, which are supposed to be close to stock).

Effin A. Would have been nice to know.

 

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I'd be happy with just a changelog.txt that gets downloaded when you update things. Playing hide and seek with my tuning system sucks.

 

^^ +111111