There are two, one on the drivers side head midway back just above the exhaust manifold for the gauge and one on the intake manifold just beside the thermostat housing for the computer.
It has 1 coolant sensor, 1 temperature sensor
one
OneOne
It has 2.
That year has 2 oxygen sensors.
2
Don't worry about it those screens are all faulty & blink coolant temp sensor.
( 2 ) oxygen sensors ( I BELIEVE they are in the outlet areas of the exhaust manifolds )
how many coolant sensors do i have on a 2003 civic si ep3
There is only one and it is located in the side tank of the radiator.
You will have 2 upstream sensors above the cat and 1 downstream from the cat.
Two- one in each of the exhaust manifolds.