This is the part im confused about. I use fsc9 and use there auto heading as atc send me out in the sticks. Is this part of the problem. Fsc9 ignores atc and flies the course set. I flew one today without fsc9 and pf3 atc sent me out to mildura then wigned i was miles out.
Using FSC9 for your lateral navigation or an FMC or a bog standard GPS unit is absolutely fine but you should only initiate it AFTER being told to 'Resume own navigation' and I would strongly suggest turning it OFF just before reaching your last waypoint. If you would then like your VCP to take over lateral navigation you should ensure your AP and HDG are set ON. Of course if you wanted to fly a manual approach you could do so but you would have to listen out for any ATC instructions and comply as soon as possible.
. I didn't get clearance till after i was already taxiing. The last i heard was the vectoring part. Continued to descend as per pf3 settings and then ils then landed. Once taxiing then i got all the other parts about clearance to land and then it changed to taxiing. Doing my head in. Until landing its a great flight!
Obviously that should never happen and (a) it wouldn't have happened had not ignored ATC instructions and (b) it won't happen again once I address the issue because ATC will remind you to turn to the correct heading