[rjgreenawald]

Hi All, New poster here

Subject: 99 Boxster base 103k mile

Car was running great then check light came on a couple times an then went out.
Then came on and stayed on throwing lots of codes all referring to passenger side cyls 1,2& 3. with a rough idle. P300 301 302 303(misfire detected). Also P1313, 1314, 1315, 1319, (misfires emission relevant cyls 1 2 3). Visual inspection of coil packs revealed no cracks. Installed new plugs and swapped coil packs side to side. Reset codes and after running smoothly cold threw the same codes with a rough idle after warming up. So coil
packs ok.
The other codes are P1340 ( position of cam in relation to crank 1 thru 3 cyls) and P1531 (camshaft adjustment cyl 1-3), and P1530 (camshaft adjustment cyl 1-3) which I think must be variocam actuator issues.
I recall seeing a resistance check for the variocam actuator solenoid and using a AA battery to actuate the solenoid and listening for clicks, but cannot find those values in researching the forum posts.
Any thoughts? Help would be much appreciated.