engine lite goes on and off? on 2008 Chevrolet HHR SS

It also when i floor the gas peddle the turbo starts to kick-in b
ut it don't and i was watching and the engine lite started to flicker as soon as i let off the gas peddle it went out? When the engine lite came on i called on star they came up with a code that the cam timing sensor problem. Can you tell me alittle bit about this please?

Asked by for the 2008 Chevrolet HHR SS
1 answer
i suggest you get a obd2 scanner to read the code,

this tool have a look.