VAF REFERENCE VOLTAGE

[ALFAMAF]

Hello Pin,

I believe you need to clarify an issue.
In your connection diagram for generation of the ECU VAF reference voltage, the voltage divider R1/R2 is depicted as connected to +12v. If users interpret this as battery voltage source this is incorrect. Reference voltages must be generated from stable sources. If the diagram actually means connection to the VAF supply sourced from the ECU, then all is good as this voltage is actually a regulated voltage from the ECU. In my case measured at 12.5V when battery volts are 13.6V. Use of non regulated VAF reference will cause all sorts of issues and the sky may fall in ?

Cheers
Doug