Learning View Snapshots \ Discussions

[<GB>]

^^^^

Then why did you ask me to log to SD and not laptop??

I know it's easier, but trying to fix my car here LOL

That's strange to ask to do that when it will give bad logs...

[KiDo_Tuning]

^^^^

Then why did you ask me to log to SD and not laptop??

I know it's easier, but trying to fix my car here LOL

That's strange to ask to do that when it will give bad logs...

It is rare, and it was in the 1st batch of logs sent through. RomRaider can get the ame noise going through the USB cord. Those that have seen me having to reboot my PC in the middle of a road tune would know.

Use the demister switch to record and log

Random question here I know but....
I came across a logcfg creator website a while back, and it had two options to log I think.
http://verticaltier.net/configtool/logger.php

One is the defogger but the other says "RPM" and you have to have engine speed selected in the Logcfg config. Anyone know what that actually does?
I do not use that template site anymore Matt has given me custom ones, but just interested to know if anyone has tried whatever that thing is.

RPM is that it will start logging as soon as you gover over 4000rpm and turn off at 6200rpm. So you drive along gently, get revs over 4000rpm in 2nd gear, drop into 3rd and then do a run from 2000rpm to over 6200rpm to turn off the log etc

[3rspecb]

LV from yesterday . A Few hard runs in the heat..
New intake pipe fitted along with the WTA Cooler (no retune as yet and silly for me to rev it out, but its bloody hard not too ).
Tuner is Cihan Aday and the car is running great with no issues so far

Uploaded with ImageShack.us

Let Cihan know that my Learning View range values do not work in H6's... it will run lean between 40 and 52g/rev since H6 uses different values to the LGT's
Open EcuFlash
Find the Learning View AF Ranges
Right click on the map text(not opening the ROM)
Pop up window will show 3 'Elements' and you need to change the 3 to a 4. Click OK/Apply.
Open map and look at the 4th value
Also, since a stock H6 goes to 2/grev and I know a supercharged H6 reaches 2.8g/rev, would it not make sense to have the FLKC Load Range lifted from 2.2 to say 3.0 and then have the FLKC Columns values set at 0.62, 0.92, 1.22, 1.52, 1.82, 2.12, 2.42 and 2.72 so it listens for knock at high load?
Would also probably be nice to have FLKC Rows set at 2000, 2800, 3600rpm, 4400, 5200, 6000 and 6800 since if your getting knock at 7500 to 8000+rpm, it would still be picked up by the 6800+rpm range row.

Matt,

A/F ranges where changed by me as advised by Bruce when he was under your spell

Thanks for your input, but I think you should spend more time focusing on your customer tunes instead of posting gibberish on the forums.

[Natty]

Isn't it great when you get 20 experts in one place.....

[alexeiwoody]

I'll log both laptop and sd. And we'll compare.

[CarDoc]

Here's what to look for. Fuel, Air, Fire

Its not the MAF
Vacuum leaks
Injector seal leaks/fuel leaks
Pressure test the intake and tubing
Check that the fuel pump is holding up to demand, especially with instant high demand at launch, maybe up the pressure a bit or larger volume pump

The engine is detonating. At launch it looks to be low fuel delivery. At high rpm, same result, lacks of fuel delivery. The latency isn't corresponding with the demand. Anyone check the TPS signals?

Timing curve may be off also.

The P0852 is interesting, but with tuning the ECM, somewhere there is an interrupt with the neutral switch signal from the TCM.

What needs to be done is some actual tuning. Look at the outputs, compare to the mechanical flow and make the correct changes instead of guessing at it and making assumptions.

[CarDoc]

Dirty MAF..

I can't tell if you're being sarcastic or serious

Af correction can be positive or negative

Gb and Bruce :

Depends on where the vacuum leak is.

Negative indicates air fuel ratio is being adjusted down. So afr would go from say 10:1 to 11:1, because the maf is seeing less air than tuned for so will compensate by pulling fuel accordingly

If vacuum leak is in the manifold then it means maf is registering certain amount of air, motor is trying to get to stoich 14.7:1, but because air is being blown out after the maf that more fuel than required is being pumped in

The 02 sensor in closed loop then sees too rich a mixture and pulls fuel, causing lean out and knock at low load

Positive correction means higher afr because the system is too efficient - ie needs less fuel to get to same stoich 14.7:1 and therefore will subtract as requested

Boost leak before maf is the reverse

Exactly. Any extra air or any loss of pressure screws the math in the map. A vacuum leak in the manifold also means a pressure loss under boost. It also causes air diversion/deflection in the manifold and changes the flow into the cylinders.

[CarDoc]

^^^^

Then why did you ask me to log to SD and not laptop??

I know it's easier, but trying to fix my car here LOL

That's strange to ask to do that when it will give bad logs...

Its what I refer to as a piss poor excuse.


BTW, I've had my car to 200, still in 3rd gear with room to 7k. I let off the fuel, it shifted to 4th and I coasted down. Thank you turnpike. Thank you ED.

So I could assume in a MT, 5th would net maybe 255 at 7k if your fuel didn't shut off first.

[KiDo_Tuning]

Matt,
A/F ranges where changed by me as advised by Bruce when he was under your spell
Thanks for your input, but I think you should spend more time focusing on your customer tunes instead of posting gibberish on the forums.

Learning View Discussion thread
That 21 to 52g/sec range is outside of your FLKC and FBKC minimum load range, hence an issue I saw.

It would make sense to have your FLKC range extended though, consult with your tuner but I doubt they would have a problem with the approach and safety margin applied

[KiDo_Tuning]

I'll log both laptop and sd. And we'll compare.

The ECU is still getting a signal issue at around the region it knocks, it actually cuts fuel pulse width as well according to logs!
Unlike Bruces car, the A2UG001G ECU is not CAN BUS so CAN Fast polling is not possible. ROM Compare to stock has no issues with errant data changes that would induce the issue in the tune, thus the Tactrix logger is picking up noise(as the stereo wiring I suggested) or the ECU itself is losing power intermittently.

How old is the cars battery?

[<GB>]

I'll log both laptop and sd. And we'll compare.

The ECU is still getting a signal issue at around the region it knocks, it actually cuts fuel pulse width as well according to logs!
Unlike Bruces car, the A2UG001G ECU is not CAN BUS so CAN Fast polling is not possible. ROM Compare to stock has no issues with errant data changes that would induce the issue in the tune, thus the Tactrix logger is picking up noise(as the stereo wiring I suggested) or the ECU itself is losing power intermittently.

How old is the cars battery?

how can we stop this from happening if it is? can we sheild the tactrix cable?

[alexeiwoody]

I have no idea if the battery has been changed - but the car is 07.

I would be very worried if a 5 year battery meant the ecu is losing power intermittently...

Wouldn't the car have blown by now if that was the case? We're talking 5500- 6400rpm ecu shutdown here, the engine would blow for sure

[Rome_BRZ]

I have no idea if the battery has been changed - but the car is 07.

I would be very worried if a 5 year battery meant the ecu is losing power intermittently...

Wouldn't the car have blown by now if that was the case? We're talking 5500- 6400rpm ecu shutdown here, the engine would blow for sure

Are you talking about a case where your logs drop out for a while then pick up again?

If you are, this is a known issue with RomRaider, it is on their forums. I have this issue too. Apparently it is because of too many parameters being logged at the same time, the only recommended fix I've seen other than checking the earthing of your wires is to reduce the number of parameters logged. I have yet to reduce the number of parameters to reduce this from happening completely, but at the moment it's less than 1,000 rpm of data it misses

[alexeiwoody]

That's what i was thinking - as posted before

Seems to have gotten better as we reduced the no. of parameters being logged. Still sometimes pops up

[alessandro132]

That's what i was thinking - as posted before

Seems to have gotten better as we reduced the no. of parameters being logged. Still sometimes pops up

This happened to me yesterday was logging my car making sure everything was in order - too many parameters and the rpm meter was shitting itself