Los of power and traction light comes on

[xyourobob]

I drove my 2004 XC90 2.9 to work and when I got back in it to drive home the car after 10mph she would lose power and the dash traction light would pop on, as soon as I took my foot off the gas and she slowed down the traction light would go out. I decided to really push it and the same issue happened but also the check engine light came on. Fortunately I had my code reader and it was a P0014 which is the cam position sensor, I have been having this light pop up on me like 6 times in the last 6 weeks so I replaced both sensors and the light stopped coming on until now. I had the car towed back to the house and the first thing I did was pop off the tire center caps to check the wheel hub bolts and all appeared tight. I don't know what to check next?