log boost with JDM MAP sensor (updated instructions)
Thread Starter
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
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From: Tri-Cities, WA // Portland, OR
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.
I e-mailed you the ROM. Feel free to post images from it if you'd like. I'll all for doing whatever for the benefit of the ECUFlash community. 
BTW, car is running great with the new sensor. I have noticed no changes at all, which is good.
BTW, car is running great with the new sensor. I have noticed no changes at all, which is good.
I haven't seen anyone verify that they haven't had a CEL on the 008 rom after the VE table mods.
I'll post tomorrow night after my 10+ hour drive to The Dragon. I did not get a CEL on my 15 minute drive home.
I'll post tomorrow night after my 10+ hour drive to The Dragon. I did not get a CEL on my 15 minute drive home.
Thread Starter
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
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?
Thread Starter
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
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?
