Checked the sparks that i could get access to and they look good. could a pcv valve be the issue?

 

No the pcv will not be the problem
Change the plugs and the wires......
IF the coils were the issue they should set a code for that pack.

P0300 - Engine Misfire Detected

These are codes for coils
[*]P0359 - Ignition Coil I Primary/Secondary Circuit Malfunction[*]P0360 - Ignition Coil J Primary/Secondary Circuit Malfunction[*]P0361 - Ignition Coil K Primary/Secondary Circuit Malfunction[*]P0362 - Ignition Coil L Primary/Secondary Circuit Malfunction

 

A small vacuum leak can cause a low idle, more fuel being delivered. It can also cause a misfire code from too much fuel and the exhaust will smell pretty bad and you may notice a little black smoke out of the tailpipe. An air leak in the inlet tube between the MAF and throttle body can cause it too.
PO0300 from what I recall is multiple misfires from different cylinders.

 

Before I changed a plugged cat, I was getting assorted mis-fire errors on multiple cylinders also.

 

I have got it repaired. Thanks to all who replied and gave advice. It ended up being spark 2 & 5 misfiring but it was not the coil. It was the whole ignition module :S About 500 CAD for the part. Runs great now. Why couldn't it have just been the coil! lol