Mass air + map sensor?
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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enyawix
Mass air + map sensor?
I found in the manual you can use Mass air + map sensor. Is any one using this option? Or the mass air only option and the ford map. I will buy a wind band. What setup wound need less tuning.
From what I read if you are talking about a more or less stockish street application, if your engine already has a MAF keep it but if it doesnt have one now dont bother. You can always add one later. MAP is required for any setup because thats how the system judges the load on the motor.
73 Cadillac Eldorado convert Fairly stock 8.5:1 500cuin/8.2L
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
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efahl
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Eldo, when you use the MAF sensor it replaces the MAP sensor as the primary load measurement device. The MAP sensor is used in the speed-density algorithm to estimate flow, while the MAF measures it directly. There may be other uses that require the MAP sensor (barometric correction, transient compensation) but for static use you should be able to toss the MAP if you have a MAF...
Eric
Eric
My mistake, perhaps I was reading some old posts from before or the early days of MAF support?
Other than the map requirement part did I read and recall correctly?
Other than the map requirement part did I read and recall correctly?
73 Cadillac Eldorado convert Fairly stock 8.5:1 500cuin/8.2L
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
I just looked to see where I got my info and it must have been in the forum because I missed it or it was not yet in the manual when I was first looking. In the index it does not seem to be listed under sensors but it is listed in the MS2 Upgrade and MicroSquirt sections. Perhaps it could be included in the sensors section of the index also?
73 Cadillac Eldorado convert Fairly stock 8.5:1 500cuin/8.2L
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
MSIIV3,2.88,relay board, LC-1,Older Holley 670cfm 2bbl TBI w/85lbhr injectors.
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enyawix
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efahl
- Site Admin
- Posts: 102
- Joined: Mon Feb 16, 2004 3:15 pm
- Location: San Clemente, California, USA
- Contact:
Eldo, you very well could have read something like that on an older thread... I've noticed that Lance has been working on cleaning out the archives and getting rid of a lot of posts with misleading or incorrect info, so if you can't find it, I wouldn't be surprised.
enyawix,
http://www.microsquirt.com/viewtopic.ph ... 455#145455
They each have their strengths and weaknesses, see my recent post on the uSquirt forum above. MAF support is somewhat sketchy at this point and you'd be one of the very few using it (I'd guess that 98% of MS installations use SD).
Yes, changing mechanical aspects of an SD installation quite often requires retuning while MAF is more tolerant of such things. Tuning SD (or any other fueling algorithm) is pretty easy the second time.
enyawix,
http://www.microsquirt.com/viewtopic.ph ... 455#145455
They each have their strengths and weaknesses, see my recent post on the uSquirt forum above. MAF support is somewhat sketchy at this point and you'd be one of the very few using it (I'd guess that 98% of MS installations use SD).
Yes, changing mechanical aspects of an SD installation quite often requires retuning while MAF is more tolerant of such things. Tuning SD (or any other fueling algorithm) is pretty easy the second time.