ZK600259AA01
5V
ECM
Knock sensor
Piezoelectric element
BAROMETRIC PRESSURE SENSOR
ZK602514 AA00
Barometric pressure
sensor (built in ECM)
A barometric pressure sensor is built into ECM. The barometric
pressure sensor is a semiconductor diffused pressure element
which outputs voltage to ECM according to atmospheric
pressure. ECM uses this output voltage to sense the altitude of
the vehicle and compensates fuel injection volume to achieve
the appropriate air-fuel ratio for that altitude.
ENGINE OIL PRESSURE SWITCH (for MIVEC)
AA00
ZK600263
Engine oil pressure
switch (for MIVEC)
Terminal
Oil pressure
An engine oil pressure switch (for MIVEC) is installed on the
engine oil control valve housing. The engine oil pressure switch
(for MIVEC) uses contact switch to detect High/Low of oil
pressure. When the engine oil control valve functions and oil
pressure in the oil path rises above a prescribed value the
contact point of the engine oil pressure switch (for MIVEC)
opens. Thus, ECM detects that oil pressure is above the
prescribed value and checks that MIVEC is functioning.
13A-20
MULTIPORT FUEL SYSTEM (MFI)
SENSOR