The mod is right there, two posts above yours.
The Mod is here in this thread. In no way is it any way an Official Mod, so I am not going to confuse things by putting it up on a website like flightsim.to
I suspect in few days, there will be an official update by the Kodiak dev team…
Just to make it clear, the Mod to the PID has nothing to do with the GPS, it’s the Autopilot that has the issues, and the Mod is to the AP PIDS.
NO, this quick mod only took about 30 minutes to figure out and analyze.
To fully Optimize the PID, might take a an hour or two. depending on how optimized you want to make the response.
I suspect the RW plane’s AP is not 100% optimized, but is adjusted to be more than good enough,
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I take it your modifications only apply to the Kodiak 100 installed in the community folder. No core sim files in the official folder need to be modified, right?
I might borrow this as a starting point, with your permission.
I’d like to have only one overshoot (ideal situation). I’m thinking a decrease of P and slight increase of I will make the intercept a bit slower and with fewer bounces. Then tuning D to tone it down to 1-2 fluctuations. I need to do it on paper first. But you have made a great start with that. It’s got me thinking.
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You most welcome to use it in any way you like.
The bounces are not that bad in practice,= - I would be more concerned with what might be a slight permanent offset (to the left).
If you fly an ILS, and look at the track Zoomed in, on LNM, you will see the plane flies offset to the left of the ILS centerline, and even when it lands, is always about 5 feet to the left of center.
(No wind test)
NO A BIG DEAL – but if it is gong to be optimized, that offset is a niggly thing that should not be there.
I think the intercept could be even faster actually, and with only a very slight initial overshoot, and then a return to almost flat, with no undershoot.
In practice, even as it is, when flying the ILS it only overshoots about 1/4 dot, which in practice is good.
While it may be possible to further optimize the PID, doing so may make it far more optimized that the RW plane, so that is really a negative if it is meant to simulate the real aircraft.
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Are any of you guys getting a nose drop following auto pilot disconnect when flying either an ILS or VNAV approach?
I am, however this does not occur following disconnect from normal flight.
I tried your settings and the plane seemed to now fly an rnav approach more solidly. Will try an ILS approach and report back.
Should be Rock solid – even on a 30-40 deg intercept. 
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This was similar to the Mooney issue when it first came out and was zig zagging in the magenta line. Has anyone reported this to the developer yet and gotten a resposne? May need a tweaking. On the good side, the plane is easy to land manually on any airstrip but it may take a bit from the immersion.
I thought maybe is was a navigraph issue of runways not lining up in the data base, but it appears to be an issue with the plane.
Give it a try on EGNT and set up an ILS appraoch RNWY 07 for an intersting landing that will make you scratch your head. And check out Hadrians Wall while you are at it.
Only if the trim is not set properly. You may have to tweak the trim upon releasing the AP.
The plane zigzagged on the GPS track and is off center on approach (even at 90 kts). To investigate …
It’s a known issue and the developers are looking at it.
A known issue for some indeed but I still haven’t had this happen so it’s not everyone.
Yep, I believe I get a nose drop every time. I’m just ready for it. I always disconnect above 500 feet. Remember to always fly two mistakes/issues high.
I use the NXi I and I have experienced the sharp left turn as soon as autopilot is engaged with the Localizer. It has happened multiple times at multiple different airports. It veers sharp left even if I am already left of the localizer path. The autopilot tries to kill me and I have to disable it and fly without. Definitely would like to know the source of this issue and at least when to expect it so I know not to try autopilot in those situations…
I’ve been noticing lately that I am always left of the runway after disengaging the autopilot and hand flying it. It might have something to do with the need for right rudder trim on approach at slower speeds. I need to do some more experimenting with that.
I have never gotten to the point of trying any approach yet. I encountered A/P control problems after taking off and enganging the autopilot. Expecting normal roll hold and altitude hold, the plane just started a turn and dive. I have not flown it since until there is an update released in which I’ll try again.
Don’t know what to suggest but have to say it must be something else you have or something you are doing because most users don’t have this issue. Perhaps something is marginal. Best to raise a ticket with the dev to get it resolved.
Apparently fixed with last update to the plane. Flew it today and all was fine except when engaging the NAV on the autopilot, nothing happens. Same occured with the Caravan so it is not the Kodiak but something with the G1000Nxi. Perhaps the recent fix messed something up.