[secretsquirrel]

This is great guys. Can we add an accompanied page for documentation requests? For instance; I'd love to know what the different color lights on the dash mean when I start up my car. I'm sure others would have other requests. I could see something like this building into an FAQ. This would allow Shiv and company to stop responding to petty questions and focus on making the product better.

[AltecBX]

That's why I started this - PROcede v4|v5 / User software Wish List

[Joshboody]

sometimes, but not all the time, the car will beep beep (similar to shift notification) on start up and only once so far when turning the ignition off. Anyone notice this? What does it mean? Thanks

[Presidio335xi]

This is the best x-mas gift. so straight forward. thank you

[azwillnj]

EDIT 12/27/10: New PDF outputted, added google spreadsheets for n54 and n55 CAN DME Codes. Note, the n55 CAN DME Code list is currently being populated, please check back for updates.

See OP for new links and PDF.

[usc335]

Please add the following information to the users guide:
----------------------------------
(1) General Command Center Descripition:
http://www.e90post.com/forums/showthread.php?t=427976
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(2) Boost Response:
http://www.e90post.com/forums/showthread.php?t=435393
----------------------------------
(3) Autotuning Basics:
http://www.e90post.com/forums/showthread.php?t=419045
----------------------------------
(3a) Autotuning Logic Overview (Shiv wrote this in some post somewhere):
AUTOTUNING BOOST & IGNITION CORRECTION EXPLAINED:
Traditional tuning involves finding the right compromise of ignition advance and boost. Basic engine theory suggests that you want to have maximum air/fuel charge expansion (during combustion stroke) at approx 14deg after TDC. So that involves initiating the spark at the right time (correct advance value). However, in the case of a turbo engine running on pump gas, the ideal spark advance isn't possible due to octane limitations (ie, running the "correct" advance will cause detonation).

Another way to look at it is recognizing that turbo engine tuning is all about managing the trade off between thermal efficiency (timing) and volumetric efficiency (boost). You can have one very high and the other very low and get poor results/low power. The key is to get them both in their respective sweet spots. In doing so, you get the most power with the greatest safety margin.

In the case of Procede AutoTuning, ignition timing changes are first applied to see how efficienty the engine is burning. The Procede calculates this by seeing what timing values are needed to achieve a knock-free combustion. If the max-load timing value is deemed too low (inefficient combustion), boost is gradually lowered. Conversely, if the engine is running a high knock-free ignition advance value, the Procede attempts to bump up boost (and raise volumetric efficiency) and make more power. While under boost, the Procede is always monitoring the ignition trims that the DME is applying. And it bases its decision on their dynamics. Same stuff I would do when custom tuning a car for any given condition. But the Procede is always doing it.

The AutoTune learning conditions have changed. There is no lower RPM limit however. It will activate at any time, regardless of RPM. But there are several over conditions that need to get satisfied. And there are a bunch of "dynamic" conditions implemented as well. Which means that it will not learn to run higher boost (at higher engine speeds) until the engine actually sees and "tests" those higher engine speeds. So simply doing at 3000-4000 pulls on, say race gas, will not get it to ramp up boost to high boost levels. Instead, the car will actually have to drive through the engine speeds that have the higher boost targets. It's exceptionally cool and way more advanced than the ignition correction-only AutoTune logic we had introduced earlier. It needed to be since boost was not in the mix.
----------------------------------
(4) AFR Display Info:
This value displays on the oil temp gauge (when this display mode is selected). The minimum reading indicates 20:1. The maximum is 10:1. Which means the middle reading is 15:1 or approx stoich. Very simple and self-explanatory. This gauge displays the leaner of either bank1 or bank2 AFR readings. So it's very helpful in diagnosing a bad or flaky o2 sensor. Or a failing fuel pump. Or, in the case of upgraded turbos operating at high boost, running beyond the limits of the stock fuel system.

Question: Why does AFR appear to go lean sometimes when transitioning from cruise to full throttle?
Answer: Those lean spikes are caused by the voltage bias the procede applies to the wideband sensors. It is, in effect, telling the DME that the engine is operating leaner than it really is. Which makes the DME add the desired fuel enrichment. The period between this perceived condition and the DME response can take a second in some cars/software with certain DME software versions. You'll see this effect most obvious in the 3500-4500 rpm range where we apply the biggest bias/fuel correction. If you put an actual wideband on the car, you wouldn't see the same lean spike at boost onset. Hope that helps clear things up.

----------------------------------
Thanks!

[shiv@vishnu]

I made a few edits in the user manual today. Few more to come over the next few days.

[Ulrich]

Great. Is there a place where it describes in detail How to operate Launch/Traction Control in the V5?

[azwillnj]

Originally Posted by Ulrich

Great. Is there a place where it describes in detail How to operate Launch/Traction Control in the V5?

Not yet, I am planning on adding that as soon as I have time to go through the multi-page thread about it... hopefully by the end of the week.

Alex.

[yitbos1]

Removed. I asked to add something that was already there.

[**335i**]

codes taken from here http://www.vishnutuningforum.com/viewtopic.php?f=2&t=22 ???

[shockin330i]

Originally Posted by Joshboody

sometimes, but not all the time, the car will beep beep (similar to shift notification) on start up and only once so far when turning the ignition off. Anyone notice this? What does it mean? Thanks

I hear this too....

[adrianBMW99]

So does anyone have an N55 DME code listing? Or at least more codes than are listed in the user manual? In addition, if you trigger some sort of serious code and accidentally clear it, would it return to signify a potential problem with the vehicle?

[shockin330i]

Originally Posted by adrianBMW99

So does anyone have an N55 DME code listing? Or at least more codes than are listed in the user manual? In addition, if you trigger some sort of serious code and accidentally clear it, would it return to signify a potential problem with the vehicle?

What code have you been getting?

[adrianBMW99]

Originally Posted by shockin330i

What code have you been getting?

Well none right now, but I did have a certain issue. I was driving at a higher rate of speed with V5, full throttle and all of a sudden the car showed the half engine light, transmission limp mode, traction light, brake light and went into limp mode. I restarted and everything was fine, so maybe I just overheated the transmission or something. Then I had an SES light that remained on which I had cleared. I returned home to read codes and none showed up, maybe nothing was wrong or maybe I accidentally cleared the bad codes. But you would think that any bad codes would return, right?

[shockin330i]

Originally Posted by adrianBMW99

Well none right now, but I did have a certain issue. I was driving at a higher rate of speed with V5, full throttle and all of a sudden the car showed the half engine light, transmission limp mode, traction light, brake light and went into limp mode. I restarted and everything was fine, so maybe I just overheated the transmission or something. Then I had an SES light that remained on which I had cleared. I returned home to read codes and none showed up, maybe nothing was wrong or maybe I accidentally cleared the bad codes. But you would think that any bad codes would return, right?

This happened to me today as well. I was going from 3rd to 4th, shifted around 6krpm and Bing, dong, christmas tree lol. Pulled over cleared the codes, but the service engine soon light stayed on for awhile. Damn thing wouldn't clear. I finally pumped the gas pedal twice and it went away..

[Tzu]

^ it seems like most of the time that people have the half engine light with the procede, they turn off the car and turn it back on and the problem disappears. As to why the problem occurs in the first place is up to Shiv to enlighten us.

[shockin330i]

Originally Posted by Tzu

^ it seems like most of the time that people have the half engine light with the procede, they turn off the car and turn it back on and the problem disappears. As to why the problem occurs in the first place is up to Shiv to enlighten us.

Its already been fixed Well at least it has been so far

[**335i**]

its with all n54 and n55?

[Glowin]

Is there any reason Launch Control documentation was left out?

This is all I've found on it so far, and I'm not clear which maps it's active on:

Originally Posted by shiv@vishnu

To trigger the timing retard during brake torquing (pressing both brake and accelerator at the same time), just press and hold the volume down button on the steering wheel. You will hear the engine/exhaust note go deeper and you will build more boost. A second or two later, let go of the brake and you will take off. When you let go of the volume-down button, the ignition advance will be ramped back in and you will pick up another 50-60lbft of torque over the next 1/2 second. You better have traction when you do this.

shiv

[jvxbimmer]

nice

[firechicken99]

This happened a month or so ago a couple of times while in the same situation, prob around 4th gear or so between 100-130mph would redline and shift gears and then limp mode and engine light. Apparently it was a "Misfire"......

however turn the car off and back on and Viola! SMH

regardless i love my procede, and just got back my v5., wheres my beer, time to install

Originally Posted by shockin330i

This happened to me today as well. I was going from 3rd to 4th, shifted around 6krpm and Bing, dong, christmas tree lol. Pulled over cleared the codes, but the service engine soon light stayed on for awhile. Damn thing wouldn't clear. I finally pumped the gas pedal twice and it went away..