Chipset
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Im running PCLink G4 V4.9.8.1540 (18-04-13) and whenever im trying to add a percentage correction in any correction map it rejects my input and return 0.0Â
Let say im trying to add 10% fuel in a fuel correction cell  ' type  +10%  , press enter , returns 0.0'
Thanks in advance -
I have an sr20det plug in and i cant  because if you want to use Neutral position and aircontition then there is only 1 Digital input left to use...........
So you can only have 1 switch to change your map form let say 98 to 100 octane hi low boost launch control etc ...
But what i know is that on the expansion cable that i have there are 2 wires that are not in use ( probably for future use ) so , if the guys in link want , they can make em DI inputs
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Thank you im waiting for this !
I want to add that this problem is irrelevant of the PC Link software Version because i had this problem even Since 4.5 firmware if i remember right , till the latest 4.8
If it happens again i will upload the faulty log so you can have more to investigate. -
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Other than that the 3d map plus the Color Map ( shortcut key H ) are features that help you to find problematic cells like those that i describe , Holes and spikes with abnormal values compered to the surrounding cells .
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If you take a closer look you going to see that the surrounding cells of the trouble one cell ( hole ) have much bigger values than in the smoothed one .
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Imagine that you have 2 cells let say 3000 rpm and 3500 at a random engine load    and you are holding the engine exactly between those 2 cells at 3250       let say that your cell 3000 have a fuel value 50 and the 3500  55  this is going to result in the same afr if the values was exactly the opposite ( cell 3000 value = 55  cell 3500 value = 50 )  because in both ways the fuel value for the 3250 cell going to be 52.5 .
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And by stressing the injectors i dont mean that you going to blow them but it is much easier and most responsive for an injector to make small changes than constant big jumps back and forth.
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And lastly you can say by looking any map from every tuner that the tune is "nice" if you see a smooth 3d map  in other way if you are looking at big spikes and holes with the numbers to be all over the place then there is something really not going on right .
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Anthony mcgrath as a rule of thumb for every 100 ps ( horsepower ) above the stock you have to use one grade colder sparkplugs than what the car had stock .
What you describe looks like that your plugs cant handle the stress of extra pressure - heat or what Jurgen said . You can find a type of plugs that is Platinum + Iridium and have the nice longevity because of platinum plus the nice spark cause of iridium =)Stay away from cheap plugs
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This is irrelevant but please give us an edit option to be able to correct those embarassing typos .
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Here is the same log from my dropbox folder in case you have problem with rapidshare
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1 in 5 times that i log a quite bit log file ( about 20 min or more ) i found that the log file dont have almost any value or have same wacky value that may was part of the real log or not part at all ( random numbers ) .
After the logging when I'm going to the log manager to save the log I'm almost sure that the log is corrupted when I see a SOL number like 1443:0....... etc  .
Today I lost a ton of fuel doing 4 gears pull to the rpm limit using different boost levels to fine tune my map .. and my gift was one of those logs that I told before.
I'm attaching the log so that you may investigate what is really happening , and all this precious time and money goes bye bye
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( I'm logging the default parameters in 20hz and I don't know if its a problem but i have both wideband 1 and an volt 6 (wideband) selected to the log parameters . I guess its ok )
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https://rapidshare.com/files/1995440842/run.llg
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Thank you
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In case you are confused im attaching a photo with a part of a fuel map , that in both cases will result in same AFR's but the first have a nice hole and the second is the result of smoothing .
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The real thing behind a very smooth map and a "bumpy" one is that you dont "stress" the injectors to make huge changes to their pusle in fractions of a second .....     Engines are linear "devices" and love to work like this =)
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I love the "new" features of interpolate extrapolate etc, but i think what is really missing from PC link is a feature that will Smooth the fuel map after tuning to eliminate "spikes" and "holes" as there is in other Ecu software.
The smoothing feature have to be clever and if there is a spike ( a cell with much higher value that the surrounding cells ) lower the value to this cell and give the surrounding cells a bigger one that will have the same results at AFR's but with a nice looking smooth 3d map .
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This may be tricky as one spike fix may result into a new spike or hole , but i think that Ashley mathematics gonna do the job just right =) , or simple if someone notice a spike after the first smoothing procedure ( Easy to see if you enable the color mode Key = H ) can run "smooth" one more time.
Even if you use quicktune and tune the map column by column those spikes and hole exist and the only way to fight them is by hand . Some ppl may say "If it is running the right AFR why do you care ?" but im not like this because a smooth map is always nice and easy to modify later if you are making changes to the motor or the tune .
I really hope for this one
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There used to be 3 modes for the Closed loop lamda as there are described in the Link manual .
At the last update that i did i can only found :
1 : Stoich
2 : AutoÂ
where did
WB Closed Loop - In WB Closed Loop mode CLL continually compares the value in the AFR Target Table and the measured AFR from a wideband oxygen sensor controller wired to an Analog Volt channel. Fuel is progressively trimmed in an attempt to match measured AFR with target AFR. · WB Closed Loop Mode 2 - In WB Closed Loop Mode 2 CLL continually compares the value in the AFR Target Table and the measured AFR from a wideband oxygen sensor controller wired to an Analog Volt channel. Fueling is trimmed by a calculated amount using a closed loop control algorithm to match measured AFR with target AFR.
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go ?
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OH ok Thank you Cameron
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Now that im thinking a bit more about it you can even make a feature that you can tune some cells like the 0 mgp row and maybe mgp 10 row from 2000 rpm to 5000 rpm and then if you dont have variable cams that need different fuel when varying the overlap you can make all the rest map filled with values by logic based on your tuned ones. From idle to the red line and from full vacuum to full boost. But even if you have variable cams or big ones or even a huge turbo that gonna make your tuned values to differ too much in some parts of your map even though you will have a much better starting point . Thank you
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where i say cols i mean rows sorry ( 10 , 20 mgp rows )
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Exactly Ashley !!! Because as it now you can use extrapolate only on the part of your map that every next row or col increase in fixed steps like 2000 2500 3000 3500 if i use anything else that it isnt increase in 500 rpm steps then the extrapolate will not make values close to ideal , and not only that but any value after this is going to be 'wrong' even if i continue with 500 rpm fixed steps. The logic behind this is to make a base map faster let say that you tune your vacuum and the 10 , 20 mgp cols from idle to the red line then if your ignition timing decrease in a specific way you can extrapolate the 20 mgp col down and your numbers are going to be very close to the tuned ones
After this you will only need to make fine adjustments.
This is nice so that you dont need to do the maths on excel or with your mind and keep quicktune on the dyno on parts of the map where your car doesnt get too much stress
Im having some thoughts about an even more advanced 'extrapolate' that take in mind the way ( in a fixed way , if it is linear, etc ) that your ignition timing is changing and adjust the values properly . This can be done with some work on excel so i bet you can implement them to pc link too .
Thank you -
Cameron ? any progress on this one =)
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I was making a base ignition base map for my new tune and noticed that the is a bug on extrapolate feature . Whenever i try to extrapolate in any direction in my fuel and ignition map im constant getting the error 'Col address out of bounds' or 'Row address out of bounds' After messing some hours with base maps that haven't the problem that my map had and trying to reproduce the problem plus checking and comparing the content of the map export file between one base map that doesnt have the problem and my map that have it i found the reason behind this bug. The reason is that whenever you use a full resolution map , fuel or ignition and by mean full resolution i mean 22x20 map the extrapolate feature doesnt work as it should . What is rly happening is that it pops out the error window and you have to click it many times ( i think the number of your rows or cols ) and after that it make the calculation . Other than that there is something more that i wish Ashley could implement about extrapolate. I wish there is a way that the extrapolate feature to take in mind row or col values that it isnt there in the calculation. What i mean is let say that my Y axis MGP going -80 -40 0 10 20 30 50 60 70 and say that i pick the whole '20 mgp' row and extrapolate down my values gonna be quite close for the '30' row but the '50' will take values that correspond better for the '40' row if it was there , in other words '50' row values will be smaller than it should. Thank you very much i hope i helped with this small bug. I also send you a email asking about a solution before i found the answer.
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When selecting multiple cells you have to right click out of the map , actually not on a cell and it is working . If you right click on the map it resets the multiple cells selection and pick the one where your mouse was when right click . Its a bit tricky especially when you want to interpolate multiple cells in a specific direction and not in all so you cant use the ctrl+I shortcut
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I hope Ashley gonna fix this one too
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How many times i used "after all" ;/ Please give us an Edit button
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Haha i wish i was able to run a RB25 or RB26 but ... Im ok fter all with the little sr
I found the problem after all .... you will not going to believe it !!! it was the timing gun that had the problem and its was an expensive one .. the gun wasnt fast enough to follow with the changing of rpm with his flashing . Today i tried again with a different gun and found that everything was rock solid using - 98 offset and 55 micro sec.
Thank you after all for you support its nice to have help from someone with better experience I love to learn new things. -
Ermm i didnt noticed before that the logging tab is working when you actually logging ;/ i thought it was there only to load and watch saved logs . Thank you dobson 2nd time today
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Thank you dobson, im tuning the car by my own but i had some concerns about if i did the right timing calibration cause if i lock my base timing let say 10 deg my timing gun shows ( after i fixed the offset ) 10 everywhere idle 1000 2000 3000 4000 etc but when i play the throttle from 1000 to let say 3000 the mark is slipping about 5 degrees minus 10 but if a stay about 1 or 2 sec to 3000 the mark goes back to 10 . I didnt know if that was normal as a result of chain whip or cas sensor play , but this doesnt look riht to me as its is something like the feature that we have for transient ignition retard ( of cource i have this off ) . If you get what i mean is that when tapping the throttle it look like im trimming 5 degrees of timing and after a while 1 2 sec my timing is spot on again . Im going to play with the micro sec offset today to see if i can fix this or not. Thank you for your response
% Corrections doesn't work
in Link G4
Posted
My mistake , don't pay attemtion ! The percentage is to do the math based on the cell value.Â