New to ECUFlash - logs inside
Thread Starter
Evolved Member
iTrader: (8)
Joined: Dec 2004
Posts: 1,347
Likes: 0
From: West Chester, OH
New to ECUFlash - logs inside
Hey guys,
I just started working with ECUFlash for the Subaru's and Evo's and I've been taking a look at my buddy's car. He has a 05 Evo with Buschur's Stage 3 setup with 280 cams.
We have the EvoScan .9 software to do the logging with. I tried using MalibuJack's EvoScan log analyzer to get load but it didn't work. So I found the equation he used (load = 5 * injector scaling * (IPW Latency) / AFRMAP). But as you can see, my load numbers didn't come up correctly. What exactly is the AFRMAP? My numbers are anywhere between ~120 and ~180 for this pull.
For some reason, I can't seem to get the "code" feature to work the way I want it to and can't post the entire log. But injector scaling is 513 and I interpolated the IPW latency based on the battery voltages in the log. What am I missing?
Anyways, things are not looking very good IMO. The knocksum looks pretty high. What is the max. knocksum?
AFR's look decent.
Guess I'm just looking for advice right now.
I just started working with ECUFlash for the Subaru's and Evo's and I've been taking a look at my buddy's car. He has a 05 Evo with Buschur's Stage 3 setup with 280 cams.
We have the EvoScan .9 software to do the logging with. I tried using MalibuJack's EvoScan log analyzer to get load but it didn't work. So I found the equation he used (load = 5 * injector scaling * (IPW Latency) / AFRMAP). But as you can see, my load numbers didn't come up correctly. What exactly is the AFRMAP? My numbers are anywhere between ~120 and ~180 for this pull.
For some reason, I can't seem to get the "code" feature to work the way I want it to and can't post the entire log. But injector scaling is 513 and I interpolated the IPW latency based on the battery voltages in the log. What am I missing?
Anyways, things are not looking very good IMO. The knocksum looks pretty high. What is the max. knocksum?
AFR's look decent.
Guess I'm just looking for advice right now.
Code:
RPM TPS KnockSum TimingAdv WideBandAF load = 2094 28 0 30.0 15.2 9 2125 29 0 31.0 15.5 9 2125 33 0 26.0 15.0 9 2125 37 0 21.0 15.0 9 2188 57 0 16.0 14.9 8 2188 82 0 15.0 15.3 8 2188 99 0 13.0 13.4 7 2250 100 0 13.0 13.4 7 2281 100 0 12.0 12.9 7 2281 100 0 12.0 11.9 7 2344 100 0 11.0 11.5 7 2406 100 0 10.0 11.3 7 2406 100 0 9.0 11.3 7 2438 100 0 9.0 11.1 7 2500 100 0 8.0 10.7 6 2531 100 0 7.0 10.4 6 2563 100 0 7.0 10.4 7 2594 100 0 6.0 10.1 7 2656 100 0 6.0 10.5 7 2719 100 2 4.0 11.0 7 2750 100 2 6.0 11.0 7 2813 100 1 7.0 11.0 7 2844 100 1 8.0 10.8 7 2906 100 1 8.0 10.8 7 2969 100 1 8.0 11.0 7 3031 100 2 7.0 11.0 7 3094 100 2 7.0 11.0 7 3156 100 4 7.0 10.9 7 3250 100 3 7.0 11.0 7 3313 100 3 7.0 11.0 7 3406 100 9 5.0 11.0 7 3500 100 9 5.0 11.0 7 3594 100 9 5.0 11.1 7 3719 100 9 5.0 11.1 7 3813 100 9 5.0 10.9 7 3906 100 9 5.0 10.7 7 4031 100 9 5.0 11.0 7 4125 100 9 5.0 10.9 7 4250 100 9 5.0 10.9 7 4344 100 9 5.0 10.9 7 4469 100 9 5.0 10.9 7 4563 100 8 5.0 10.9 7 4656 100 8 5.0 10.9 7 4781 100 8 5.0 10.7 7 4906 100 8 5.0 10.6 7 5000 100 8 5.0 10.7 7 5063 100 8 5.0 10.7 7 5156 100 8 5.0 10.9 7 5250 100 7 5.0 10.8 7 5375 100 7 5.0 10.7 7 5500 100 7 5.0 10.7 7 5594 100 9 6.0 10.7 7 5688 22 8 26.0 10.7 9 5469 20 0 38.0 10.6 9 5563 18 0 38.0 10.9 9 5406 16 0 38.0 10.9 9
Yea seems like your tune may need a little adjustment, if you get a few 1's here and there it is ok, but man anything over 5 you may want to look into especially since the knock is only occurring at WOT.
Thread Starter
Evolved Member
iTrader: (8)
Joined: Dec 2004
Posts: 1,347
Likes: 0
From: West Chester, OH
I agree with you. That's why I'm trying to figure this stuff out before I put the car on the dyno to start tuning.
I don't really think the fuel and timing map are that aggressive. But I do know that this tune was done for 22psi and the car is now running 24psi. So i'm guessing that has something to do with it.
I don't really think the fuel and timing map are that aggressive. But I do know that this tune was done for 22psi and the car is now running 24psi. So i'm guessing that has something to do with it.
Last edited by SloRice; Sep 12, 2006 at 12:59 PM.
Originally Posted by SloRice
why?
Trending Topics
Evolved Member
Joined: May 2006
Posts: 2,399
Likes: 6
From: UK
AFRMAP is an internal value the ECU uses to calculate fuelling. It has the same scaling as the real numbers in the fuel maps (128=14.7, high numbers are richer in proportion). By knowing what AFR the ECU wants, the idea is that from the injector time it runs you can tell how much air it measured - ie a proxy for load.
You actually need to log the AFRMAP and IPW values though. Evoscan 0.9 does this, on 0.8 you need to edit data.xml
A n00b finding this thread and saving the map images herein before they are pulled would experience similar to an incident I remember that I call profiterole surprise. At a lunchtime function I reach for what I believe to be a profiterole, only to find it to be a rather substandard fishy pastry thing
You actually need to log the AFRMAP and IPW values though. Evoscan 0.9 does this, on 0.8 you need to edit data.xml
A n00b finding this thread and saving the map images herein before they are pulled would experience similar to an incident I remember that I call profiterole surprise. At a lunchtime function I reach for what I believe to be a profiterole, only to find it to be a rather substandard fishy pastry thing
Thread Starter
Evolved Member
iTrader: (8)
Joined: Dec 2004
Posts: 1,347
Likes: 0
From: West Chester, OH
Images pulled.
As for logging. I did log AFRMAP and IPW with the Evoscan 0.9. But when I tried to calculate the load with the equation in my first post it didn't give me numbers that were correct.
For example, here is a point in the log
RPM = 4468.75
Airflow = 1333.48
AFRMAP = 182
Battery Voltage = 13.6338V
Injector Scaling = 513
Latency compensation = 11.72V=0.672 and 14.06=0.432
So latency compensation at 13.6338V = 0.476
Load = 5 * injector scaling * (IPW latency) / (AFRMAP)
Load = 5 * 513 * 0.476 / 182 = 6.71
that's not right.
As for logging. I did log AFRMAP and IPW with the Evoscan 0.9. But when I tried to calculate the load with the equation in my first post it didn't give me numbers that were correct.
For example, here is a point in the log
RPM = 4468.75
Airflow = 1333.48
AFRMAP = 182
Battery Voltage = 13.6338V
Injector Scaling = 513
Latency compensation = 11.72V=0.672 and 14.06=0.432
So latency compensation at 13.6338V = 0.476
Load = 5 * injector scaling * (IPW latency) / (AFRMAP)
Load = 5 * 513 * 0.476 / 182 = 6.71
that's not right.
Originally Posted by SloRice
Images pulled.
As for logging. I did log AFRMAP and IPW with the Evoscan 0.9. But when I tried to calculate the load with the equation in my first post it didn't give me numbers that were correct.
For example, here is a point in the log
RPM = 4468.75
Airflow = 1333.48
AFRMAP = 182
Battery Voltage = 13.6338V
Injector Scaling = 513
Latency compensation = 11.72V=0.672 and 14.06=0.432
So latency compensation at 13.6338V = 0.476
Load = 5 * injector scaling * (IPW latency) / (AFRMAP)
Load = 5 * 513 * 0.476 / 182 = 6.71
that's not right.
As for logging. I did log AFRMAP and IPW with the Evoscan 0.9. But when I tried to calculate the load with the equation in my first post it didn't give me numbers that were correct.
For example, here is a point in the log
RPM = 4468.75
Airflow = 1333.48
AFRMAP = 182
Battery Voltage = 13.6338V
Injector Scaling = 513
Latency compensation = 11.72V=0.672 and 14.06=0.432
So latency compensation at 13.6338V = 0.476
Load = 5 * injector scaling * (IPW latency) / (AFRMAP)
Load = 5 * 513 * 0.476 / 182 = 6.71
that's not right.
-Paul