 megasquirt users, need help |
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| underthetire |
 May 29 2010, 11:01 AM
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#1
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914 Guru  Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California  |
I'm running a MSII code 2.88. I can't figure out the barometric correction settings on Megatune. Car ran fine, actually good, yesterday morining, then high pressure system came in, now I seem to be rich. What settings have others had good success with? I'm using one sensor BTW.
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Replies(1 - 4)
| RJMII |
May 29 2010, 11:29 AM
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#2
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Jim McIntosh Group: Members Posts: 3,125 Joined: 11-September 07 From: Sandy, Utah Member No.: 8,112 Region Association: None |
It should automatically adjust for the outside barometric pressure when you shut off the car.
The way it works is that it takes a reading before starting, figures out the kPa of the atmosphere, and makes it's compensations based off of that. (which is how I got away with running the one MAP sensor for my turbo setup) The battery is dead in my car and can't pull up my exact settings for you. (IMG:style_emoticons/default/sad.gif) |
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| underthetire |
May 29 2010, 11:35 AM
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#3
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
QUOTE(RJMII @ May 29 2010, 10:29 AM)  It should automatically adjust for the outside barometric pressure when you shut off the car. The way it works is that it takes a reading before starting, figures out the kPa of the atmosphere, and makes it's compensations based off of that. (which is how I got away with running the one MAP sensor for my turbo setup) The battery is dead in my car and can't pull up my exact settings for you. (IMG:style_emoticons/default/sad.gif) I know about the initial start up, but I think my settings are off. Too bad your not closer, I have a battery guy here that can get the gell cells. He got me the exide version of the optima, and I really like it. |
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| 904svo |
May 29 2010, 01:37 PM
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#4
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904SVO Group: Members Posts: 1,118 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
QUOTE(underthetire @ May 29 2010, 09:01 AM) I'm running a MSII code 2.88. I can't figure out the barometric correction settings on Megatune. Car ran fine, actually good, yesterday morining, then high pressure system came in, now I seem to be rich. What settings have others had good success with? I'm using one sensor BTW. Do your self a favor and add the second map sensor, with one map sensor if the cpu resets what is ever pressure is in the manifold thats your new barometric reading the engine runs on. With the second MAP it will automatically take care of it. I also had a problem like this because I live in the mountains. |
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| mightyohm |
May 29 2010, 10:56 PM
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#5
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Advanced Member Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest  |
I think your problems are way more likely to be temp related than pressure. I have never touched the baro correction factor.
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