owie
how long the cams been installed?
i installed my cams myself and did copious research on what could go wrong, including any related DTC's i might need to watch out for, and that is shorely one of them; sounds like you (or installer) let the timing chain slack and jump a tooth during the install. being the camshat timing is variable (VCT), i don't know how long it would take the car to realize it's off a tooth.. 1 tooth is only 17 degrees timing, and the phaser can eat up a bunch more than 17 degrees..
the cam is off time on one side.
maybe you were runnin the piss out of it and managed to get the chain to jump a tooth, but i vote this is less than 1% likely; hydraulic chain tensioner, etc..
i didn't design the motor, so i don't know how much timing she'll give and take under various circumstances, but i can tell you if i got that code, i'd be right back under those cam covers/front cover retiming that motor.. cause you shorely don't want valve-to-piston contact right?
i know we (Ford) has a vehicle called a CX-7 (mazda.) it's a turbo'ed 4 cylinder, that's mated to a 6spd automatic trans only. it was geared to a bit of a strange crowd (typically single females that have decent jobs drive this car), considering the performance aspect (turbo.) well, this strange crowd are the kind of people that tend not to wind out the gears (don't accelerate fast enough,) which causes the trans to shift early, and the end result is the engine spends a considerable amount of time at lower RPM's. well because it's a turbo, it's got a bit of a mild cam in it, for being a stock car. and because these morons spend so much time at low RPM, the cam bucks (which i'm sure you've experienced on your FRPP's.. i know i have) and actually stretches the chain.
so, i haven't seen a spec for chain stretch, but i'd certainly pull it down and check for wear/tear/damage/timing.