Had a engine light came up,scanned vehicle with evoscan and code p0170 malfunction found.
I am dealing with a very RICH idle/engine idles rough/stalls.
where should I start?

 

I think you were on the right track on your other thread. I know sometimes we wish a code would lead us strait to the failed part without any other guess work, but unfortunately this doesn't seem to be the case. Sometimes you just have to take your best educated guess. Im not one to spend other people's money lol. So its really up to you on what you feel you should replace. Obviously something is causing the engine to run rich, or at least the front O2 sensor says so, thats why most people run a wideband, that way you can compare the factory O2 to the additional wideband reading.