[88Racing]

You can only clear that code by driving the truck.

[JackandJanet]

And to elaborate on this. I never saw the P1000 code using my old Gryphon, but I DO see it now if I put the tune back to stock using the CTS.

I posted this in the CS/CTS forum, but I'll repeat a bit here. I drove my truck for about 50 miles with the tune at stock and the P1000 code did not clear. This was around town and it involved several start/stop cycles and, the truck reached operating temperature during most of these cycles. I'm beginning to think unless you actually DO the "drive cycle reset" procedure (which seems like learning to play the piano), it might take a long time to reset using "ordinary" driving. I set the tune back to Level 2 finally, and the P1000 code was instantly gone. Shortly after that, I took the truck to be emissions tested and simply disconnected the OBD cable at the plug and tucked it up out of sight. I didn't even bother to remove the CTS from the dash. The truck passed with flying colors.

So, bottom line: Leave the truck "tuned" if you are getting an emissions inspection!

- Jack

[BlackSTX]

Jack, from my time at Jaguar, which used an antiquated Ford program according to one of the techs, it can sometimes take a prolonged period of time to reset everything. Some vehicles may be more touchy than others for some reason. It even presented such a problem at times they stuck lot boys into the cars and had them drive it and periodically stop back in service to see if everything reset yet, and if not, back on the road they went to drive it some more.

I have taken mine in on level 3 and just unplugged the Gryphon, placing the cable out of the way before handing over the keys to service. So far I have not had any issues here.

I would suggest that anyone going in where the OBD system is connected to, make sure well in advance that there are no codes stored. Like you suggested previously, doing so a week in advance is probably a good idea to do this too.

[GSXRider]

I can only speak of mine 03' Ford F150 FX4 Lariat, I don't know about others, but I would like to know if they're are others. I get the P1000 code every time I switch it back to stock , if they're are others in the older yrs bracket getting this code, please let me know.

[88Racing]

This will always happen when going back to stock.
Or
Disconnecting the battery.
Only driving the truck will clear it.
I haven't seen if it happens while a custom tune is loaded and the battery was disconnected.
It's an indicator that the pcm has had its KAM memory erased and its starting to learn again.

Originally Posted by GSXRider

I can only speak of mine 03' Ford F150 FX4 Lariat, I don't know about others, but I would like to know if they're are others. I get the P1000 code every time I switch it back to stock , if they're are others in the older yrs bracket getting this code, please let me know.