Vvt solenoids question

[jas98]

Ona ba xr6turbo the valve control solenoids. If these are playing up can they not set a code? 

 

Basically I replaced the solenoids last year with new fuelmiser ones which are ultrtech branded. 

 

Lately the idle seems to a bit rougher(not missing ) exhaust bote seems a bit veafier aswell at idle ..like a very very very mild cam ..also sometime it seems a bit underpowered to other times the car. 

 

Not to mention fuel usage is high...but everything seems ok.

 

 

Sooo want to eliminate these as being an issue. How do I check these in forscan? Can I see what there doing? Wat should it read at idle? 

[Puffwagon]

A code will be logged if the timing is too far retarded or advanced.

 

In Forscan go into "read pid data", type vct into the search bar and log the cam error. You want less than 2 degrees of cam error ideally. The cams should move around a little bit at idle, if they are stuck at -10 and aren't moving at all the phaser is stuck and will need pulling apart to free up the locking pin.