VEMS Community Forum

Technical => Wiring & Sensors => Topic started by: andreNL on October 22, 2010, 09:47:13 PM

Title: WB calibration problem
Post by: andreNL on October 22, 2010, 09:47:13 PM
Hi all, my WB reading are zero or just a spike till 12.3 checked wiring looks ok no short and connected to the right pins
Vems V3.2 Firmware 1.1.78
Warm-up.ABS limit 248
Max time spent.at abs limit 66.8 sec
Fallback after maxT 69%
Retry after 12sec
Heater PID target 150
Heater KP 69
Heater KI 17
Heater KD 26
Heater PID integrale limit 129
Pump KP 21
Pump KI 78
Pump KD 0
Pump PID integral limit 255

Hope anyone can help its the last sensor before starting




Title: Re: WB calibration problem
Post by: MWfire on October 22, 2010, 10:56:56 PM
sensor is cold?
Title: Re: WB calibration problem
Post by: jrussell on October 23, 2010, 04:05:55 AM
Setting aside the fact you shouldn't have the sensor in there when your first start the car, here's the procedure to check the hardware. Start there.

http://www.vems.hu/wiki/index.php?page=GenBoard%2FManual%2FWideBandHardwareTest
Title: Re: WB calibration problem
Post by: andreNL on October 23, 2010, 07:45:11 AM
No sensor is heating up, and is out in free air . Cheers
I planned the hardware test forward today need some part for it.
Title: Re: WB calibration problem
Post by: andreNL on October 23, 2010, 01:20:31 PM
Did the test, GND - pump- is 3,95v
pump - pump + is -729mv  ??? should be -4 +4mv

pump_pw_zero = 0A in config
tried to change it to 66 with vemstune but didnt succeed
i dont know the command for the terminal program bray
cheers
Title: Re: WB calibration problem
Post by: andreNL on October 23, 2010, 05:11:14 PM
Its working boy this thing is fast  ;D

I remember having megatune 2.25 on my laptop
And used it to change pump_pw_zero. It was set at
0A sovjet is 10 in hexadecimal.
Some bloke on the forum had his set at 100 and Pump nernst cell at 132
Mine was set at 255. I set pump_pw_zero at 66 as recommemded by default
And volt reading changed to.-231mv, i set pump_pw_zero at 100 and.the reading
Was -0,01 mv. But reading was still crap changed, Pump nernst cell to 132 and it looked
Like a guage nicely jumping with slow solid movements. Set calibration to 214 and voila
Hovering around 20,9 20,8 low 21,0 high  :D
Title: Re: WB calibration problem
Post by: andreNL on October 24, 2010, 09:27:30 AM
Little update figering vemstune out for ignition settings,
Pump_pw_zero can be set in
Base settings -> ecu calibration