After one relaxed weekend I found out of it. SOLUTION: Under hook up I used pin 16 and pin 17 as they are to MAFS and MAFS ground to get IAT signal to ECU. To use pin 16 a jumper on J8 is sett to manipulate 5V out on pin 16. But I moved IAT signal to pin 15 so I can use AN temp 2 to IAT and free one ecu analog output. That I could used to WB. So as you understand it is not that easy to get 0-5V in when it are working against 5V out. So I just moved the jumper and wolla, Ecu got 0V out and everything was good. New it had to be something easy, since it worked fine with Apexi pfc. QUESTION: So the ecu on AN Temp can maipulate a 5V out as a resistor but not on AN volt? As I understand IAT need a resistor and that is where the 5V comes to play?