Moderator Asked me To Post the code... This WILL as it is now, read an OBDII J1850 VPW Port, It will also tell you all information from the Headers,, Source,, Target and Data.. Unlike the ELM326 It gives DETALs... AND shows where the 200us SOF starts... It uses 2 interupts... IF I COULD ADD THIS **>...

I am using 2 input pins tied together as interrupts, to catch rising and falling VPW. rising starts one timer falling starts 2 timer.. This gives me the pulse width times... Using Arduino for programming. Example of interrupts = void CountH() { digitalWrite(txPin, HIGH); TrigL = false; TrigH = true;...