last weekend i got the IMG replaced on both sides, along with the throttle body gasket (hey..why not, right?)
the truck drove well sunday night--all the way until this morning, when the CEL popped on.
got the codes read:
p0137- o2 sensor circuit low volts (bank 1 sensor 2)
p0157- o2 sensor circuit low volts (bank 2 sensor 2)
ok, ok, ok--now what?

could it be the IMG again or could it actually be the o2 sensors this time? the truck idles like normal, no spikes or fluctuations like before the IMG's were changed.
>sigh<--i'm just going to go buy a code reader and leave it in this truck...