I found something strange in VEMSTune with internal 700kPa MAP Sensor.
VEMS M55 AAN 3.6 - firmware 1.2.10
I replaced the internal 400kPa MAP sensor by an internal 700kPa sensor (5700)
Trying to calibrate the MAP sensor in VEMS config file - ECU offline
MAP Range Unit -- setting from normal (<510) to double (>510)
Table kPa Unit -- still 2 (4 is tested at the end of this posting)
Restarting VEMSTune
MAP Sensor Range (slope) -- trying to set it to 780 --> getting error message "Value out of range"
maximum in calibration is 510 - should be 1020
Connecting ECU -- ECU now online
MAP Range Unit -- setting from normal (<510) to double (>510)
Table kPa Unit -- still 2 (4 is tested at the end of this posting)
Restarting VEMSTune
MAP Sensor Range (slope) -- trying to set it to 780 - success!
maximum with ecu online is now 1020 in calibration menu
trying to set MAP AXIS in VE table or ign table up to 600 --> getting error message "Value out of range"
maximum for table AXIS is 510 - should be 1020
trying to set MAP value in RevLimit/Overrun/Safety for Overboost fuelcut to 650 --> not possible!
maximum for overboost fuelcut is 510 - should be 1020
this is also critical because engine produces up to 550 kPa of boost!
ECU still connected - ECU online
testing map sensor with VEMS gauge -- sensor is working fine, gauge shows values up to 700kPa
starting new logfile -- logfile is fine, showing values up to 700kPa
saving logfile to harddisk
saving config file to harddisk
ECU diconnected - ECU now offline
loading configfile to VEMSTune
calibration settings are still correct (780, double, 2)
All Values for MAP in menus and table AXIS are shown as half value, max is 255 now??? -- error!
typing 50, 100, 255 in VE table MAP Axis
Saving config file
Connecting ECU -- ECU now online
loading config file back to ecu
calibration settings are still correct (780, double, 2)
All Values for MAP in menus and table AXIS are right value now 100,200,510 like it should be!
So there are some issues:
first, no way to calibrate the sensor correct in VEMSTune when ecu is offline
second, if ecu is offline, all values for MAP in AXIS and menus are shown half but correct when ecu online again
third, 700kPa sensor is calibrated correct and shows correct values when ecu is online, calibration max is 1020 but max in table AXIS and safety or range funktions in menus are still limited to 510!
ECU diconnected - ECU now offline
loading previous saved logfile to VEMSTune
All values in logfile are correct, calibration data is correct and MAP AXIS is correct!
Ok - so the ecu offline problem with showing half values is only present in config file, not in logfile.
Saving a config file from this logfile an loading to VEMSTune (ECU still offline) --> all values shown half again!! error
Next issue
Connecting ECU -- ECU now online
MAP Range Unit -- setting from normal (<510) to double (>510)
Table kPa Unit -- setting to 4
Restarting VEMSTune
MAP Sensor Range (slope) -- trying to set it to 780 --> --> getting error message "Value out of range"
maximum in calibration is 510 - should be 1020
AND!
All Values for MAP in menus and table AXIS are half value, max is 255 now??? -- double error now! ECU still online!
These issues must be something with the 8 bit system. FF is the highest possible value in config file and so it has to be double or x4 to get values up to 510 or 1020.
Any solution?? Thanks...
But I think there msut be an calculation error in the software.