Weird Misfire And Error Codes

[GMan]

After getting my gearbox problem fixed after a good 3 weeks, another problem had come up straight afterwards.

On idle its fine but when you give it some revs, it heavily misfires for like 5 seconds and then stops. The spark plugs are brand new, coil packs have been tested and are working fine and so are injectors, afm is replaced with a new one.

When the diagnostic consult computer is plugged in it came up with error code 017 and 046 which arent in any of the nissan handbooks. when it is cleared and reseted, only 017 remains.

It is a R34 Gtt in tiptronic and if anyone has any information regarding any of these it is much appreciated