have codes P0031.
Resistance between terminals 3&4 is 3.4 ohms (book calls for 3ohms) is this ok?
code po445 purge vlave resistance is 21.6 ohms (book calls for 29.7ohms) is this ok?

P1655
Resistance of the vvt is 3.7ohms when the engine is warm.

Is that ok?

P0245 Turbo control valve 23.6ohms (book calls for 29.7 ohms) is this ok?
and
p0448 I do not know where that valve is.

Thanks for the help.

Keith