Egr Valve Position Sensor Inspection - Mazda 6 Workshop Manual

Monitor item
Unit/Condition
(Definition)
VFDES
mm
(Volume fuel desired)
VPWR
(Battery positive
voltage)
VSS
km/h
(Vehicle speed)
End Of Sie

EGR VALVE POSITION SENSOR INSPECTION

Voltage Inspection
1. Disconnect the vacuum hose from the EGR valve position sensor and connect the vacuum pump to the EGR
valve.
2. Turn the engine switch to the ON position.
3. Verify that the voltage at terminal B changes while applying the vacuum to the EGR valve as show in the graph.
• If not as specified, replace the EGR valve.
Specification
.
Vacuum
0— –36.6 kPa {0— –274.5
mmHg, 0— –10.8 inHg} or
above
–73.3 {-549.8 mmHg, –21.7
inHg} or below
Resistance Inspection
1. Disconnect the EGR valve position sensor connector.
2. Measure the resistance between terminal A and C.
• If not as specified, replace the EGR valve.
EGR valve position sensor resistance
Approx. 5 kilohms
End Of Sie
CONTROL SYSTEM
Condition/Specification (Reference)
KOEO/ Volume fuel desired is
3
per stroke
KOER displayed
Battery positive voltage is
V KOEO
displayed
mph KOER Vehicle speed is displayed
Voltage
4.09—4.59 V
Approx. 0.54 V
Inspection item
Inspect following PIDs:
START_SW, CPP, CPP/PNP,
IVS, AC_REQ, APS1, APS2,
IAT2, ECT, BOOST_DSD, FRP,
FRP_A, RPM, VSS.
Inspect PCM control relay.
Inspect battery.
Perform applicable DTC
troubleshooting.
(V)
0.54
4.09—4.59
-36.6 -73.3
{-274.5, -10.8}
{-549.8, -21.7}
C B A
PCM
terminal
—
27, 53,
79
—
B6E404018881106
F2
(kPa {mmHg, inHg})
BPE4040W001
B6E4040W003
F2–37