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Summary of change:
'''Configure to display Lambda, not AIM''' Some round devices (notably those manufactured in 2021-09) were shipped with an unusual config, that displays AIM-data or '''-FU''' if AIM not received. Admittedly annoying. Sorry about that. * device HW always carefully tested several times before sending * If not actually using AIM stream, it can be reconfigured in 4 minutes. '''We recommend to File/save config before proceeding.''' * Also '''take note of some values''' (Advanced menu EGT and Wideband settings): * '''EGT calibration:''' 151-152 usually * '''EGT offset:''' 80..200 usually ** 0.5C / step, any value from 0..255 is normal if the device temp is roughly displayed as EGT temp when the K-thermocouple input is shorted * '''Wideband pump_pw_zero:''' 99 usually (or close, eg. 98 less often) * '''Wideband nernst_dc_target:''' 228 usually (mostly) ---- * Download [http://vems.hu/download/VemsTune/autoUpdate/defaultfirmwareconfigs/round_0.7.51.vemscfg round_0.7.51.vemscfg] file to local disk * File/upload config to device (with VemsTune) ** (Advanced/) EGT offset might be changed, so adjust according to your records, or calibrate with K-thermocouple input shorted '''Alternatively: Edit vemscfg file:''' * config.display_mode[N]=0x instead of 8x * config.display_mode[N]=5x instead of Dx (but AFR is counterrecommended) * eg. (most importantly) ** config.display_mode[0]=80 <= display data from AIM input ** change to ** config.display_mode[0]=00 <= display lambda measured by device File/upload config (choose the edited vemscfg file). After that, device displays lambda, and not AIM (which is not received => indicated by -FU). We are checking how to set it from VT. (possibly VT ini change). Thanks for the patience. ---- Issue with round (manufactured 2021-08) firmware 0.7.51 '''REPRODUCED ISSUE in lab'''. On good track now. '''Thanks for the patience''' config.display_mode[0]=80 '''THIS CONFIG IS WRONG''', >=80 (upper nibble >= 8) is for AIM function, but AIM it does NOT receive. * Workaround: Edit file, like: ** config.display_mode[0]=00 instead of 80 (to display Lambda and EGT: recommended) ** config.display_mode[4]=50 instead of D0 (to display AFR, not recommended) ** and upload config. We're examining why VT does not make it more obvious that display is set to AIM.... (TODO: how to configure with VT for non-AIM ?) The gauge is happy that the sensor is '''working and showing correct lambda in VemsTune'''. * "display is slot 0 and max is 0 it's still '''showing -FU''' (problem!) ** Display Peak values="actual values" are selected, right ? *** Correct It can '''show other things in the top row, but AFR or Lambda just shows "-FU"''' (indicating possibly Display Peak value="peak value" selected instead of "actual value", or target not reached problem, are the wires safe and sound ?). * Wires must be safe and sound I?ve already used the 0-5v output to tune an engine with this and the 0-5v responds exactly as expected, x% more fuel in ecu = X% more richer in vemstune and on the analog out Can you do Tools/Firmware verify 0.7.51 ? (just in case) * uploading any other firmware version is not currently supported (this has full functionality, and no other fw relased for this device). Please investigate and respond to report crvGcr * we upload a config that shows correct lambda/O2 * your config (extracting from report) **I?ll upload the latest config to the report. *** All configs ever uploaded to report
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