Issues with fuel!!
Hey 03lances try this log here, and this video should help as well:
http://www.youtube.com/watch?v=4El4L4kxfDY
http://www.youtube.com/watch?v=4El4L4kxfDY
Good point, thats true, but why in open loop does my AFR go lean instead of rich??? Evoscan says its getting richer according to AFRMAP but my wideband goes way lean and im getting knock at 5 PSI even with real low timing around 3-5 advanced timing getting like 8 counts, i think cuz its lean
My idle has always done that same thing with the afrs. I think it has something to do with my WB sensor location. I know I am leak free anyways. One thing is all you have to log for load is 1byteload. Dont worry about logging ecuload and especially not loadcalc.
Ok so is this with forced open loop? It looks like its in closed loop in the low loads but actually looks like it went into open loop fine on this pull and went back to closed the moment you let off the throttle. Are you using the stock fpr? Injectors? Have you done a full pull to see if it ever starts to drop down at all?
Ok so is this with forced open loop? It looks like its in closed loop in the low loads but actually looks like it went into open loop fine on this pull and went back to closed the moment you let off the throttle. Are you using the stock fpr? Injectors? Have you done a full pull to see if it ever starts to drop down at all?
My idle has always done that same thing with the afrs. I think it has something to do with my WB sensor location. I know I am leak free anyways. One thing is all you have to log for load is 1byteload. Dont worry about logging ecuload and especially not loadcalc.
Ok so is this with forced open loop? It looks like its in closed loop in the low loads but actually looks like it went into open loop fine on this pull and went back to closed the moment you let off the throttle. Are you using the stock fpr? Injectors? Have you done a full pull to see if it ever starts to drop down at all?
Ok so is this with forced open loop? It looks like its in closed loop in the low loads but actually looks like it went into open loop fine on this pull and went back to closed the moment you let off the throttle. Are you using the stock fpr? Injectors? Have you done a full pull to see if it ever starts to drop down at all?
Last edited by Mitsu.kid.02; Nov 6, 2010 at 09:18 PM.
Hmm.. Hey steven did you just change the fuel map?
I have my timing mapI think around 2 degrees at peak torque but thats also at 12 psi. I would have to look at my old maps to see what I was running at 5 psi
I have my timing mapI think around 2 degrees at peak torque but thats also at 12 psi. I would have to look at my old maps to see what I was running at 5 psi
Last edited by 03lances; Nov 6, 2010 at 09:52 PM.
Here are my most recent logs today. Now it seems that when i get into open loop my ARF on my wideband drop to about 12.2 or so but then as i accel into boost more it works its way up into 15AFR by the time it gets to 5 psi....do i just need to lower the fuel values in ECUflash?
Last edited by Mitsu.kid.02; Nov 7, 2010 at 07:26 AM.
I think this is your MAF scaling. Try increasing it at 400, 500, and so forth all the way up. Make it nice and smooth, and have it be about 200 at 1600, maybe all the way to max, but I haven't tried that yet. I am about to flash the following to my car and see how it does. Still, I think it's the same issue I am having. AFRMAP says "lower and richer" but wideband shows higher and leaner. Also, I think about 300 and lower will affect your idle, so don't mess with that. Log airflow and you will see what I'm talking about. I see about 800hz airflow at like, 5psi and 5000 rpm.
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FYI, if you change the MAF scaling values, your AFR's in your fuel map may need to be wildly adjusted because you'll go so rich your wideband won't even meter it. ie, use caution. I have made small adjustments to both tables, but always small and steady. Still, I don't think it will hurt you much to increase your MAF scaling whenever go lean, as far as airflow.
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FYI, if you change the MAF scaling values, your AFR's in your fuel map may need to be wildly adjusted because you'll go so rich your wideband won't even meter it. ie, use caution. I have made small adjustments to both tables, but always small and steady. Still, I don't think it will hurt you much to increase your MAF scaling whenever go lean, as far as airflow.
Last edited by HornstarBU; Nov 7, 2010 at 09:10 AM.
I think this is your MAF scaling. Try increasing it at 400, 500, and so forth all the way up. Make it nice and smooth, and have it be about 200 at 1600, maybe all the way to max, but I haven't tried that yet. I am about to flash the following to my car and see how it does. Still, I think it's the same issue I am having. AFRMAP says "lower and richer" but wideband shows higher and leaner. Also, I think about 300 and lower will affect your idle, so don't mess with that. Log airflow and you will see what I'm talking about. I see about 800hz airflow at like, 5psi and 5000 rpm.
43
47
56
63
67
69
70
71
72
73
74
75
85
100
114
132
164
192
220
250
255
FYI, if you change the MAF scaling values, your AFR's in your fuel map may need to be wildly adjusted because you'll go so rich your wideband won't even meter it. ie, use caution. I have made small adjustments to both tables, but always small and steady. Still, I don't think it will hurt you much to increase your MAF scaling whenever go lean, as far as airflow.
43
47
56
63
67
69
70
71
72
73
74
75
85
100
114
132
164
192
220
250
255
FYI, if you change the MAF scaling values, your AFR's in your fuel map may need to be wildly adjusted because you'll go so rich your wideband won't even meter it. ie, use caution. I have made small adjustments to both tables, but always small and steady. Still, I don't think it will hurt you much to increase your MAF scaling whenever go lean, as far as airflow.
I just sent you my current ROM and XML im using! Hopefully you can find something in there that looks odd maybe, hornstar brought up a good point about the MAF scaling
Last edited by Mitsu.kid.02; Nov 7, 2010 at 09:02 PM.
I think it was your maf settings are you running 501 or the evo maf?
I think you might need to lower or raise your maf settings, im not sure whih one but I think that might be your problem but mine runs lean during idle and when it warms up for a few minutes it goes back to stoich. "this is on a cold start"
Try that because the map isnt bad at all
I think you might need to lower or raise your maf settings, im not sure whih one but I think that might be your problem but mine runs lean during idle and when it warms up for a few minutes it goes back to stoich. "this is on a cold start"
Try that because the map isnt bad at all
Ok so your Open Loop tables look fine. Your maf scaling seems to be higher all the way through compared to my stock rom idk if you have already changed it though. The scaling that hornstar listed is exact same as my stock. Generally 0-100hz is effective ilding area 125-400hz area effects mainly cruising and 500+ is for WOT and acceleration from what I have read and from my own experiences. You could try to up the maf numbers in that 500+ range. You could just bump them all up like 10 points to see what happens. Definately wont hurt anything as only thing it can do is make it richer.
Looks like I lied too about my airflow hz I see around 1300 max flow right now
Looks like I lied too about my airflow hz I see around 1300 max flow right now
Last edited by 03lances; Nov 8, 2010 at 01:07 AM.






