Ok so other than the two codes I have been getting p1173 and p044, I am now getting this since yesterday p0430 and p0153. Yesterday was very humid and a lot of fog. It is idle if rough also. I do have on order and waiting for delivery are new coil packs wires and plugs.
could be a vacuum leak ??
how do I make a diy smoke tester for this ?
also gas cap needs to be scotchbrite too as it hard to go in unless lubed with gas.
today cleared codes and haven’t come back yet low humidity and no fog.

 

Not sure on these ones but here are the descriptions for anyone else

P1173 Downstream fuel trim malfunction (bank 2) Front sensor aged - rear HO2S adaption too lean/too rich RH bank (NAS and EU-3 only)
P0440 Purge valve not sealing
P0430 - Catalyst efficiency deteriorated - RH bank (NAS and EU-3 only)
P0153 O2 sensor circuit slow response (bank 2, sensor 1) Front sensor aged - period time too long/too short RH bank

 

I would say that's more likely to be a dead o2 sensor and a bad purge valve.

 

Well then add that to the list :-(

 

Purge valve is pretty cheap - I think that @cvhyatt was having some issues with that code as well. Might be worth pinging him.