Hey folks,
I'm setting up the basics of mt msq file and I want to make sure that I understand each option!
I did a search and didn't come up with an answer to the basic question- should I turn baro correction on to "initial map read" or set it to "none"?
I'm running a mostly street car, full exhaust, and a turbo. What the heck does this setting do? Correct fuel based on altitude?
cheers!
nick
Barometric Correction - Initial MAP? None?
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Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Barometric Correction - Initial MAP? None?
1980 924TurboS
-
Bernard Fife
- Super Squirter
- Posts: 1009
- Joined: Mon Feb 16, 2004 3:15 pm
Nick,
Baro correction samples the ambient (outside) air pressure when MegaSquirt first starts up, and uses it to compensate the fuelling for the effect of reduced or increased pressure on the exhaust.
It is helpful if you drive in mountainous areas. However, it can be a problem if you are having resets while the engine is running (in which case the running MAP is used as baro, and the baro correction is wrong by a very large margin),
If it were mine, I would set baro correction to 'initial MAP reading', but turn it off if you find you are having resets.
Lance.
Baro correction samples the ambient (outside) air pressure when MegaSquirt first starts up, and uses it to compensate the fuelling for the effect of reduced or increased pressure on the exhaust.
It is helpful if you drive in mountainous areas. However, it can be a problem if you are having resets while the engine is running (in which case the running MAP is used as baro, and the baro correction is wrong by a very large margin),
If it were mine, I would set baro correction to 'initial MAP reading', but turn it off if you find you are having resets.
Lance.