AFM fault when Z32 ecu is connected - need help

[guricha]

Hi guys need help,
on r33 ser2 was installed nistune with Z32 ECU, yesterday everything was fine car was under control and ready for tuning, this morning when i start it car was not reeving more then 3000 RPM, i have checked with nistune and DTC is giving afm error, no voltage is coming from maf sensor, just in case i try with standard ecu and its fine car is working ok and afm is responding also, any idea for this reason ??
thanks in advanced

[Matt]

Check AFM pin on the ECU connector is okay and measure voltage at ECU plug. If ECU is showing 0 volts then either input converter was damaged somehow or there is a wiring problem (intermittent) going to the ECU plug. So you should use a multimeter at this plug to check the voltage

[guricha]

Check AFM pin on the ECU connector is okay and measure voltage at ECU plug. If ECU is showing 0 volts then either input converter was damaged somehow or there is a wiring problem (intermittent) going to the ECU plug. So you should use a multimeter at this plug to check the voltage

Yes Matt i think so also but if there is the problem with the wiring why is that car is running on the stock ECU ?