Mazda 6 - Egr Valve Position Sensor Inspection

CONTROL SYSTEM
F2–37
F2
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EGR VALVE POSITION SENSOR INSPECTION
B6E404018881106
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
.
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
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VFDES
(Volume fuel desired)
mm
3
per stroke
KOEO/
KOER
Volume fuel desired is
displayed
Inspect following PIDs:
START_SW, CPP, CPP/PNP,
IVS, AC_REQ, APS1, APS2,
IAT2, ECT, BOOST_DSD, FRP,
FRP_A, RPM, VSS.
—
VPWR
(Battery positive
voltage)
VKOEO
Battery positive voltage is
displayed
Inspect PCM control relay.
Inspect battery.
27, 53,
79
VSS
(Vehicle speed)
km/h mph KOER Vehicle speed is displayed
Perform applicable DTC
troubleshooting.
—
Monitor item
(Definition)
Unit/Condition Condition/Specification (Reference) Inspection item
PCM
terminal
Vacuum Voltage
0— –36.6 kPa {0— –274.5
mmHg, 0— –10.8 inHg} or
above
4.09—4.59 V
–73.3 {-549.8 mmHg, –21.7
inHg} or below
Approx. 0.54 V
(V)
0.54
4.09—4.59
(kPa {mmHg, inHg})
-73.3
{-549.8, -21.7}
-36.6
{-274.5, -10.8}
BPE4040W001
B
A
C
B6E4040W003