here we go again with this P0172 on my 96 Camaro. Bank one rich. it comes and goes but I have a feeling it's gonna haunt me with emissions testing coming up. I can't seem to narrow this thing down i'm about to go through and replace fuel injectors. I'm pretty sure the current ones are the original ones and I just hit 143k today. Any other things I might wanna look at?

 

umm you may have a dying O2 sensor, find someone with HP Tuners and see if that can find the issue by scaning the car....

rich could be a sticking fuel injector

you can pull the plugs on that side and see if one looks like it burning rich