Big AFC Problem - Need Help

[Blackened]

I wired AFC-NEO couple of weeks ago, we made the tune-up on the road, and the car was working and running perfectly. But after a few miles something happened. It doesn't matter even on low thorttle or high throttle, the car suddenly cuts reading from afc, and it goes very rich, under 10 AFR, and kills the sparks, and after a few miles it returns and starts reading from afc again. during the problem, afc does not work, and you cant control the maf. it works by itself and we cant control it. but then somehow it works again.

I got, Z32 (N62) maf and 450cc DSM injectors, FMIC, hks intake and full 3" piping.

I got the in 2 and out 7 for the Z32 maf on AFC, as I read on the other topics, I did all the correct stuff, wiring is perfect, but I couldnt solve the problem for 2 weeks, you are my last chance Nico How can I make the car work perfect ?

[bentvalves]

you have a bad ground somewhere, or an intermittent connection elsewhere.

check your wiring, not only the AFC.

[Blackened]

you have a bad ground somewhere, or an intermittent connection elsewhere.

check your wiring, not only the AFC.

we checked all the wiring today, and back on the road again for test.car runs perfectly from start-up, with first 3 gear, and then on the fourth gear it returns to 10 afr (rich) and out of control. and then a few minutes later, starts to read from afc again.

I'll plug the original maf and uninstall the z32, and then make a test run again. I own the car for years, and I see a problem like this first time, and I cant find a way out ?