Mazda 626 MX-6 Workshop Manual page 311

COMPONENT DESCRIPTION
Component
A ir flow meter
Detects amount of intake air;
sends signal to control unit
Distributor Has Ne and G rotors
EGR control valve Recirculates portion of exhaust gas
EGR position sensor Detects EGR control valve lift amount;
sends signal to control unit «
Engine control unit Detects signals from input sensors and
switches; operates solenoid valves (vent
or vacuum side)
Ne rotor and pick-up Detects crank angle at 30° intervals;
sends signal to control unit
Solenoid valve (EGR) Controls vacuum to EGR control valve
Detects throttle valve opening angle;
Throttle sensor
sends signal to control unit
Stores vacuum led to solenoid valve
Vacuum chamber
(EGR, vacuum side) under turbocharger
boost condition
Detects coolant temperature;
Water thermo sensor
sends signal to control unit
Detects radiator coolant temperature;
Water thermo switch
sends signal to control unit
Function
Intake air temp sensor and
fuel pump switch are in­
tegrated
Variable resistor
Engine speed signal
Vent side: controls vent line
Vacuum side: controls vacu­
Installed on throttle bo dy
Integrated check valve
ON: above 17°C (62.6°F)
4B
EGR SYSTEM
Application
Remarks New Previous
model
O
O
o
0
o
o
o
um line
o
0
o
o
86U04B-106
model
O
X
o
0
o
X
o
o
X
o
o