There are more than one O2 sensors on that truck and they are all threaded into the exhaust system at various points.
Trouble code P0405 means:Exhaust gas recirculation sensor A circuit low
what is the fuel capacity of a 1998 chevy s-10 pick up
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
it is the "pick up" plate inside the distributor.
because they do
omg, there are a crapload of sensors on it. what is it doing?
timeing cover lower
That would be the distributor.
Maybe a few parts. Most parts will not fit.
On my 80's Chevy pick-ups they are under the distributor on the back of the block near the firewall.
The cam sensor is the "pick up plate" in the distributor, under the rotor.
Check the fuses