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Summary of change:
When we calibrate the wbo2 sensor we need to change values in wbo2 config. 1: calibrate (wbo2_pump_pw_zero) measure the voltage between pins 5 and 6 of the wideband connector The ideal voltage is so cloce to zero (0) as passebele. To adjust the voltage, change the value of wbo2_pump_pw_zero in config.txt or Megatune. A good starting point value should be between 0x64 to 0x66 decimal 100 – 102. 2: Place a 100 Ohm resistor between pump+ (pin 6) and nernst (pin 1) 3: Place a 100 Ohm resistor between pump- (pin 5) and nernst (pin 1) 4: Open the terminal program 5: Turn on the WBO2 heater by typing “Man” then “mde02” then “mlp07” to get to the wbo2 page at the display.DUE NOT CONNECT THE WBO2 SENSOR YET 6: Measure the voltage between ground and pump- (pin 5). It should read 3.96V. Measure the voltage between ground and nernst (pin 1). It should read 4.41V. Measure the voltage between nernst (pin1) and pump- (pin 5). It should read +450mV. 8: The ajustment can be don from mega tune IF SOME ONE CAN HELP WITH THE NEXT STEP 8: To adjust the voltage between ground and pump- (pin 5).= Tag ??? To adjust the voltage voltage between ground and nernst (pin 1).= Tag ??? adjust nernst_dc_target if that due not worke then ?? To adjust the voltage between nernst (pin1) and pump- (pin 5).0 Tag ??? http://www.vems.hu/files/PeterJensen/wbo2imag/wbo_1.jpg http://www.vems.hu/files/PeterJensen/wbo2imag/wbo_2.jpg wbo2 wbo2_warmup_ramp=31 wbo2_warmup_target=FF wbo2_abs_limit=A0 wbo2_limit_maxt=FF wbo2_fallback=60 wbo2_retry_t=02 wbo2_edgetime_corr=BA wbo2_edgetime_min=50 wbo2_ri_target=96 wbo2_nernstdc_target=98 wbo2_pump_pw_zero=64 wbo2_calibration=A9 wbo2_heater_pid_kp=45 wbo2_heater_pid_ki=11 wbo2_heater_pid_kd=1A wbo2_heater_pid_ilimit=81 wbo2_pump_pid_kp=15 wbo2_pump_pid_ki=4E wbo2_pump_pid_kd=00 wbo2_pump_pid_ilimit=FF wbo2_ri_confidence_scale=80
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