The key code number is generally on the drivers door key barrel, if this is too hard to take off also check the trunk lid key barrel it can sometimes be found there too, possible on any of the other key barrels too, but I have only checked drivers door and trunk lid key barresl and found it.
Oxygen sensor 1. In exaust manifold.
BCI code 40R type battery
Each vehicle has it's own factory code
Trouble code P1451 means: Evaporative Emission System Vent Control Circuit
Code P0171 means System to lean (bank 1)
I have the same problem right now on my 2000 Ford Contour. Haven't figured out the answer yet.
A 99 Ford uses the OBDII code readers. Just plug it in, turn it on and follow the instructions.
Trouble code P0117 means:Engine coolant temperature circuit low input
Trouble code P0117 means:Engine coolant temperature circuit low input
Trouble code P1383 means:Variable cam timing over-retarted (bank 1)
drivers side under dash near door
P0420 Catalyst System Efficiency Below Threshold (Bank 1)