I want Lambda..efi live
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From: Broken Arrow, OK
I want Lambda..efi live Here is the quick, I have had a long day and I cant sort this out.
efilive, cos3, e85, turbo car, 3bar, AEM wb. Commanded AFR in Lambda.
I need to auto VE and record in scan tool in lambda. Am I missing something? Honestly I do not know where to start. I have been using AFR for so long that I am now lost. I also need to configure scan to read a 0-5v wb (10 - 20). I know this must be simple....
efilive, cos3, e85, turbo car, 3bar, AEM wb. Commanded AFR in Lambda.
I need to auto VE and record in scan tool in lambda. Am I missing something? Honestly I do not know where to start. I have been using AFR for so long that I am now lost. I also need to configure scan to read a 0-5v wb (10 - 20). I know this must be simple....
http://www.e85mustangs.com/regions123.html
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From: Broken Arrow, OK
That assumes you know the exact content of the fuel in your gas tank and it's respective stoich AFR. Just because a pump says "E85" on the side doesn't mean that's what you're getting.
http://www.e85mustangs.com/regions123.html
http://www.e85mustangs.com/regions123.html
Thanks Speed Demon for the site, I will give it a look.
The answer is in the 1st link I posted.
If you program your WBO2 as follows:
0v = 0.74074 (lambda) = 1.35 (EQ)
5v = 1.1765 (lambda) = 0.85 (EQ)
...the formula for EQ is:
(-0.0008*({EXT.AD1}+1)*({EXT.AD1}+1)*({EXT.AD1}+1))+ (0.0179*({EXT.AD1}+1)*({EXT.AD1}+1))-(0.1895*({EXT.AD1}+1))+1.5223
...the formula for lambda is "1/EQ" (substitute formula above).
Making a PID with this formula means that no matter what type of fuel is in the tank, you should have an accurate understanding of what the sensor recognizes as stoich.
If you program your WBO2 as follows:
0v = 0.74074 (lambda) = 1.35 (EQ)
5v = 1.1765 (lambda) = 0.85 (EQ)
...the formula for EQ is:
(-0.0008*({EXT.AD1}+1)*({EXT.AD1}+1)*({EXT.AD1}+1))+ (0.0179*({EXT.AD1}+1)*({EXT.AD1}+1))-(0.1895*({EXT.AD1}+1))+1.5223
...the formula for lambda is "1/EQ" (substitute formula above).
Making a PID with this formula means that no matter what type of fuel is in the tank, you should have an accurate understanding of what the sensor recognizes as stoich.
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Thread Starter
TECH Regular
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From: Broken Arrow, OK
The answer is in the 1st link I posted.
If you program your WBO2 as follows:
0v = 0.74074 (lambda) = 1.35 (EQ)
5v = 1.1765 (lambda) = 0.85 (EQ)
...the formula for EQ is:
(-0.0008*({EXT.AD1}+1)*({EXT.AD1}+1)*({EXT.AD1}+1))+ (0.0179*({EXT.AD1}+1)*({EXT.AD1}+1))-(0.1895*({EXT.AD1}+1))+1.5223
...the formula for lambda is "1/EQ" (substitute formula above).
Making a PID with this formula means that no matter what type of fuel is in the tank, you should have an accurate understanding of what the sensor recognizes as stoich.
If you program your WBO2 as follows:
0v = 0.74074 (lambda) = 1.35 (EQ)
5v = 1.1765 (lambda) = 0.85 (EQ)
...the formula for EQ is:
(-0.0008*({EXT.AD1}+1)*({EXT.AD1}+1)*({EXT.AD1}+1))+ (0.0179*({EXT.AD1}+1)*({EXT.AD1}+1))-(0.1895*({EXT.AD1}+1))+1.5223
...the formula for lambda is "1/EQ" (substitute formula above).
Making a PID with this formula means that no matter what type of fuel is in the tank, you should have an accurate understanding of what the sensor recognizes as stoich.
. I read this at work and printed your responses for my cheat folder. This helped a lot. I only wish I had more of an understanding of PIDs and the background language. Thanks Much
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Verdad Gallardo You the man.... I was very impressed with your understanding as it was apparent in the link you listed - all 16+ pages. I read this at work and printed your responses for my cheat folder. This helped a lot. I only wish I had more of an understanding of PIDs and the background language.
Thanks Much
. I read this at work and printed your responses for my cheat folder. This helped a lot. I only wish I had more of an understanding of PIDs and the background language. Thanks Much
EQ=(-0.00004*(({EXT.AD1}/0.25)+1)*(({EXT.AD1}/0.25)+1)*(({EXT.AD1}/0.25)+1))+(0.0026*(({EXT.AD1}/0.25)+1)*(({EXT.AD1}/0.25)+1))-(0.0743*(({EXT.AD1}/0.25)+1))+1.53
As requested, that's the equation I came up with that will work with your AEM unit. You just need to validate what the sensor is capable of reading.
As requested, that's the equation I came up with that will work with your AEM unit. You just need to validate what the sensor is capable of reading.
