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Forum name | Engine Management Systems & Controllers |
Topic subject | Megasquirt load vs map sensor |
Topic URL | http://forums.2gnt.com/dcboard.php?az=show_topic&forum=54&topic_id=5452 |
5452, Megasquirt load vs map sensor Posted by SilvrEclips, Dec-31-69 06:00 PM
Running MS 1 v2.2 with the 11c1 code.
Recently my 4 bar map sensor was having issues, it worked fine but all of a sudden the load % was about 20 below the map sensor kpa. These values have always been pretty close at atmospheric pressure. So thinking my map sensor was bad I put in the stock 2.5bar sensor and the map was reading 99kpa and load was 100%. Everything looking normal now I ran this setup for a few months till I needed to upgrade the sensor again. Bought a new 3 bar sensor and put it in. Same issue as before now. map is reading 99kpa and load is reading 81%.
The map sensor works fine so is this normal? I shouldn't have to rescale all of my maps from just changing the map sensor.
EDIT: Yes I changed the sensor to 300kps in megatune and the configure mode.
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5453, RE: Megasquirt load vs map sensor Posted by CODE4, Dec-31-69 06:00 PM
I have never used the 3 bar sensor - only the stock 2.5 and 4 bar (with baro, which I am currently using).
I will have to queue up a load gauge, as I only use a MAP gauge, along with two digital readouts for vac & boost in TunerStudios.
For shits & giggles, have you tried loading up TunerStudios and seeing if the same discrepancy exists?
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5454, RE: Megasquirt load vs map sensor Posted by SilvrEclips, Dec-31-69 06:00 PM
Yea I opened up TS and load still shows 81% but the map sensor is now showing 86kpa. This stuff really makes no sense. I have used MS for prob ably 3 years now and still havent learned everything.
Guess Im just going to try and rescale my maps and then tune it from there. Im wanting to take it past 22psi.
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5455, RE: Megasquirt load vs map sensor Posted by CODE4, Dec-31-69 06:00 PM
Hey bro, I added a quick LOAD gauge to my project and grabbed a screenshot for you:
As you can see, mine match. For troubleshooting purposes, try uploading a different firmware version and see if the problem persists.
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5456, RE: Megasquirt load vs map sensor Posted by SilvrEclips, Dec-31-69 06:00 PM
thanks man, Ill have to do some more trouble shooting to try and track it down. Ended up finding a blown turbo gasket so that takes priority to the MS issue. I just put the 2.5bar map back in it so I wouldn't have to change the maps.
Nice dash board btw.
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5457, RE: Megasquirt load vs map sensor Posted by 740 turbo brick, Dec-31-69 06:00 PM
The only time Ive had an issue with it saying anything other than 98-100 when not running is when the sensor wasnt calibrated right. I have the 3 bar sensor and it was calibrated for 2.5, making my gauge read like 85% or so.
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5458, RE: Megasquirt load vs map sensor Posted by SilvrEclips, Dec-31-69 06:00 PM
Yea I dont know what is wrong with it. Been looking at MS2 and removing the ECU as well. Its very tempting.
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