Help, my tune
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From: js-garage.com
Change the higher load sites (baby steps!) and you will start seeing changes in your logs. I would bet a beer on it.

Maybe try something like this:
Code:
200 220 240 260 280 320 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -6 -9 -10 -10 -10 -10 -4 -7 -10 -10 -10 -10 -2 -5 -8 -10 -10 -10 2 -1 -4 -7 -7 -7 2 0 -3 -6 -6 -6 5 2 -1 -4 -4 -4 5 5 4 3 2 2 6 5 4 3 2 2 8 7 5 4 3 3 8 8 7 5 4 4 8 8 7 6 5 4 9 8 8 7 6 5 10 9 8 7 7 6 11 10 9 9 9 7 12 10 10 9 9 8 12 11 10 10 9 8
Last edited by razorlab; Jun 28, 2007 at 08:25 PM.
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From: js-garage.com
Are you reading our posts? Your calc load is inaccurate since you have larger injectors and it is based off the stock injector scaling. I stated that in one of my earlier posts. You are easily over 270 load with a GT3076 at 22psi.
Change the higher load sites (baby steps!) and you will start seeing changes in your logs. I would bet a beer on it.
Change the higher load sites (baby steps!) and you will start seeing changes in your logs. I would bet a beer on it.

I have tryed pulling fuel at 300 and it still does not respond.
I added to my post above as far as some timing ideas. YMMV
If you are changing fuel with no response from your wideband (showing 10AFR) with over 10.2 in your fuel maps then I think something is wrong with your wideband.
If you are changing fuel with no response from your wideband (showing 10AFR) with over 10.2 in your fuel maps then I think something is wrong with your wideband.
if an injector is "sized" /scaled to rich it is entirely possible to have your fuel map actually read what afr you intend to run.
I had a map that was by and large 12.x to 12 .x in the load columns, which is what I am tuning for with water injection.
Since I got my scaling corrected, thanks to one of razorlab's posts, the map now looks like it did originally, with all those ridiculous late nines and tens.
I had a map that was by and large 12.x to 12 .x in the load columns, which is what I am tuning for with water injection.
Since I got my scaling corrected, thanks to one of razorlab's posts, the map now looks like it did originally, with all those ridiculous late nines and tens.
if an injector is "sized" /scaled to rich it is entirely possible to have your fuel map actually read what afr you intend to run.
I had a map that was by and large 12.x to 12 .x in the load columns, which is what I am tuning for with water injection.
Since I got my scaling corrected, thanks to one of razorlab's posts, the map now looks like it did originally, with all those ridiculous late nines and tens.
I had a map that was by and large 12.x to 12 .x in the load columns, which is what I am tuning for with water injection.
Since I got my scaling corrected, thanks to one of razorlab's posts, the map now looks like it did originally, with all those ridiculous late nines and tens.
Yup you are correct, but his 780's look to be scaled correctly from the screenshot he posted, unless I am looking at it wrong.
jordo,
You can modify your ROM to log 2-byte load, if you want to know for sure what load cell you are in.
As far as the rest of the post and comments recently: you say that you have a 4" K&N with your 3076. Is this a new addition, both the filter and the turbo?
Also, you haven't messed with your MAF scaling, have you?
You are simply flowing more air than you think, whether it is because of the combination of your filter and turbo messing with the MAF, or simply because you are flowing more air.
You may have to rescale your tables to go beyond the 300 load column. When you go straight to 10:1, it could be your wideband like Bryan stated, it could be that your MAF reading is screwed up, or it could be that you are overrunning your load tables and the ECU is adding even more fuel than the maps state, or a combination of all of these.
Also, sorry if this was mentioned earlier, but what are your long term and short term fuel trims? It may be as simple as dialing in your injectors properly.
Eric
You can modify your ROM to log 2-byte load, if you want to know for sure what load cell you are in.
As far as the rest of the post and comments recently: you say that you have a 4" K&N with your 3076. Is this a new addition, both the filter and the turbo?
Also, you haven't messed with your MAF scaling, have you?
You are simply flowing more air than you think, whether it is because of the combination of your filter and turbo messing with the MAF, or simply because you are flowing more air.
You may have to rescale your tables to go beyond the 300 load column. When you go straight to 10:1, it could be your wideband like Bryan stated, it could be that your MAF reading is screwed up, or it could be that you are overrunning your load tables and the ECU is adding even more fuel than the maps state, or a combination of all of these.
Also, sorry if this was mentioned earlier, but what are your long term and short term fuel trims? It may be as simple as dialing in your injectors properly.
Eric
There are three long term trims, low, mid, high. 0C is low, 0D is mid, 0E is high. There is one short term trim, 0F is STFT. Evoscan has low and high LTFTs switched. If your low and mid LTFT are both 0 (100), then your injectors are scaled fine, but double check that you are logging the correct requests that I have mentioned. Your LTFT low may actually be off. Also, they may reset to 0 after a flash, so look at your STFT to see what the ECU is trying to do at idle and cruise.
Your 2-byte load of 379 is not surprising. Now, at least we have confirmed that you are well past your normal tables. That is way too high even for your turbo at 22 psi, though. Have you messed with your MAF scaling by any chance?
Also, as far as your 2-byte load of 379...do you have a graph of this? I want to see if it just plateaus at that spot. I remember reading that the ECU has a max maf/rev value and if it passes that value there is another table that will replace it. Maf/rev is basically = load. Actually, quoting Bez from one of his disassembly thread, base LOAD=MAF_PULSES_PER_REV*MAF_SIZE*2^17.
So, I am wondering if you are hitting this load 'limit', which may be also causing your fueling issue. I would think that plenty of people have seen past a load of 379, though, with 35rs at 30 psi, etc. Also, please let us know if you have changed anything in any of your MAF tables from stock.
Eric
Last edited by l2r99gst; Jul 2, 2007 at 04:36 PM.
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From: js-garage.com
I fixed the issue..
My intake setup was crappy, so i bought a FP intake arm and used the stock intake box.
also had a boost leak which was overspooling the turbo, resulting in weird MAF settings..
I finally have it ready for tuning now..
Thank you guys, ill post my new map and logs so you guys can look over.
My intake setup was crappy, so i bought a FP intake arm and used the stock intake box.
also had a boost leak which was overspooling the turbo, resulting in weird MAF settings..
I finally have it ready for tuning now..
Thank you guys, ill post my new map and logs so you guys can look over.
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