Omni 4bar map sensor Plug and Play
Aug 10, 2009, 06:26 PM
#155
Use the 3 bar seetings found in the JDM map sensor thread for Ecuflash, then just change the formula in Evoscan to 0.238683*x-14.7. Also, change 14.7 to represent your altitude based on the chart in the JDM 3 bar thread. Then it should work perfectly. If it reads 37.xx all the time, then you have one of the sensors with the incorrect pinouts (like mine was), so you have to switch the two outside wires around on your plug.
If you have a IX, you also have to scale the MAP sensor, and the settings can be found in the Omni 4 Bar thread by John Bradley (below). If you have an VIII you don't have to worry about this.
Omni 4 bar thread: https://www.evolutionm.net/forums/ec...-settings.html
JDM 3 Bar thread: https://www.evolutionm.net/forums/ec...tructions.html
If you have a IX, you also have to scale the MAP sensor, and the settings can be found in the Omni 4 Bar thread by John Bradley (below). If you have an VIII you don't have to worry about this.
Omni 4 bar thread: https://www.evolutionm.net/forums/ec...-settings.html
JDM 3 Bar thread: https://www.evolutionm.net/forums/ec...tructions.html
Aug 12, 2009, 01:04 PM
#161
I took at look at your logs.... everything seems nominal. I was most interested to see if there was any knock registered, but nothing. Hopefully someone can come up with a suitable explanation, but otherwise I wouldn't be too concerned about it. Is the behavior consistent?
Aug 12, 2009, 05:48 PM
#162
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Use the 3 bar seetings found in the JDM map sensor thread for Ecuflash, then just change the formula in Evoscan to 0.238683*x-14.7. Also, change 14.7 to represent your altitude based on the chart in the JDM 3 bar thread. Then it should work perfectly. If it reads 37.xx all the time, then you have one of the sensors with the incorrect pinouts (like mine was), so you have to switch the two outside wires around on your plug.
If you have a IX, you also have to scale the MAP sensor, and the settings can be found in the Omni 4 Bar thread by John Bradley (below). If you have an VIII you don't have to worry about this.
Omni 4 bar thread: https://www.evolutionm.net/forums/ec...-settings.html
JDM 3 Bar thread: https://www.evolutionm.net/forums/ec...tructions.html
If you have a IX, you also have to scale the MAP sensor, and the settings can be found in the Omni 4 Bar thread by John Bradley (below). If you have an VIII you don't have to worry about this.
Omni 4 bar thread: https://www.evolutionm.net/forums/ec...-settings.html
JDM 3 Bar thread: https://www.evolutionm.net/forums/ec...tructions.html
Aug 31, 2009, 12:54 PM
#163
After installing my omni 4bar and making the proper changes to the xml file on evoscan it wont read over 15psi. My mechanical guage is still telling what it always has which is well over 15 but evoscan will not read that high. I am starting to think either my map is bad or they sent me the wrong one. I am also having problems with going very lean once it gets above 15psi no matter how much fuel I add in the maps. What is the proper way to test this with a multimeter? And are there any markings to tell the differnce between a 3bar and a 4bar?
Aug 31, 2009, 01:01 PM
#164
After installing my omni 4bar and making the proper changes to the xml file on evoscan it wont read over 15psi. My mechanical guage is still telling what it always has which is well over 15 but evoscan will not read that high. I am starting to think either my map is bad or they sent me the wrong one. I am also having problems with going very lean once it gets above 15psi no matter how much fuel I add in the maps. What is the proper way to test this with a multimeter? And are there any markings to tell the differnce between a 3bar and a 4bar?
Last edited by D-VO; Aug 31, 2009 at 01:08 PM.
Aug 31, 2009, 01:52 PM
#165
After installing my omni 4bar and making the proper changes to the xml file on evoscan it wont read over 15psi. My mechanical guage is still telling what it always has which is well over 15 but evoscan will not read that high. I am starting to think either my map is bad or they sent me the wrong one. I am also having problems with going very lean once it gets above 15psi no matter how much fuel I add in the maps. What is the proper way to test this with a multimeter? And are there any markings to tell the differnce between a 3bar and a 4bar?
Out of curiosity, where did you purchase the MAP sensor from?