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Summary of change:
Some minor set up issues... '''Temperature Calibration''' Temperature calibration seems to be reading low. The air sensor is [http://www.msdignition.com/fuel_12.htm MSD 2320] with exposed thermistor (100k-50 Ohms), the coolant sensor is a [http://www.roversnorth.com/RRD04/RRD04_17_20/RRD04_page17.htm Land Rover] part. The following points were measured, using a DVM with K-thermocouple: ||||Coolant||||Air|| ||Temp||Resistance||Temp||Resistance|| ||-16||6650|| || || ||1||5420|| || || ||3||5430|| || || || || ||7||5370|| ||20||2318||20||3190|| ||21||2023|| || || || || ||71||480|| ||86||242|| || || ||88||297|| || || ||96||203|| || || The air sensor sounds like a common NTC part? So are there scaling issues here? '''WBO2 Voltages''' Got the hardware completed. The issues seem to be getting it set up as described [http://megasquirtavr.sourceforge.net/manual/Detailed.Sensor.Wide.html#Config here]. I took base settings from the above page, and found that 0x63 was closest to 0V for my board (-0.109V). Then inserted 100 Ohm resistors into the socket and took readings (nerst_dc_voltage=8D): ||Circuit||Target||Voltage|| ||GND -> Pin 5 (pump)||3.96||4.28|| ||GND -> Pin 1 (nernst)||4.41||4.39|| ||Pin 1 -> Pin 5||0.45||0.11|| Adjusting nernst_dc_target can change nernst value, but pump is still too high, and difference too small. The linked page states "The product of wbo2_pump_pid_ki and wbo2_pump_pid_ilimit should be around 0x4000" but linked values of 0x20 and 0xFF give 0x1FE0 already? Which is more correct, and how can I use this to increase the pump voltage (assuming nernst_dc_target can reduce nerst voltage independently). I think increasing wbo2_pump_pid_ilimit should work to raise the pump voltage? Or should I increase wbo2_pump_pid_kp instead? (after reading PID links)
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