log boost with JDM MAP sensor (updated instructions)
#62
It is a MAP sensor so it does not correct for atmospheric pressure. You'll have to make an adjustment to the EvoScan formula for your elevation. If its curently 0.19347*x-14.51, change it to 0.19347*x-14.3. That will get you closer to 0 psi with the engine off.
#72
Evolved Member
iTrader: (6)
I tested the JDM MAP with the ignition on and engine off and Evoscan running. I got 0.193720 psi reading even though I am at sea level. So it was slightly off.
So I openned the xml file in Evoscan and changed the parts that reads Eval="0.19347*x-14.51" to Eval="0.19347*x-14.67". 14.67 being atmospheric pressure at sea level. I ran Evoscan and got 0.033720 psi.
Then I rounded up from 14.67 to 14.7 and that gave me the most accurate reading of 0.003720 psi.
I do not know if what I did was the right or wrong way to do this. Any opinions?
So I openned the xml file in Evoscan and changed the parts that reads Eval="0.19347*x-14.51" to Eval="0.19347*x-14.67". 14.67 being atmospheric pressure at sea level. I ran Evoscan and got 0.033720 psi.
Then I rounded up from 14.67 to 14.7 and that gave me the most accurate reading of 0.003720 psi.
I do not know if what I did was the right or wrong way to do this. Any opinions?
#73
I tested the JDM MAP with the ignition on and engine off and Evoscan running. I got 0.193720 psi reading even though I am at sea level. So it was slightly off.
So I openned the xml file in Evoscan and changed the parts that reads Eval="0.19347*x-14.51" to Eval="0.19347*x-14.67". 14.67 being atmospheric pressure at sea level. I ran Evoscan and got 0.033720 psi.
Then I rounded up from 14.67 to 14.7 and that gave me the most accurate reading of 0.003720 psi.
I do not know if what I did was the right or wrong way to do this. Any opinions?
So I openned the xml file in Evoscan and changed the parts that reads Eval="0.19347*x-14.51" to Eval="0.19347*x-14.67". 14.67 being atmospheric pressure at sea level. I ran Evoscan and got 0.033720 psi.
Then I rounded up from 14.67 to 14.7 and that gave me the most accurate reading of 0.003720 psi.
I do not know if what I did was the right or wrong way to do this. Any opinions?