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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 ???
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