Section 07 ENGINE MANAGEMENT (DI)
Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
EXHAUST GAS TEMPERATURE
SENSOR (EGTS)
2
F12R0SA
1
1. Muffler
2. Exhaust gas temperature sensor (EGTS)
Resistance Test
Disconnect the connector from the EGTS and
check the resistance of the sensor itself.
The resistance should be between 2280
and
2740
.
Otherwise, replace the EGTS.
If resistance tests good, reconnect the EGTS and
disconnect the AMP connector number 4 on the
MPEM.
Using a multimeter, recheck resistance value be-
tween terminals 10 and 12.
If resistance value is correct, try a new MPEM.
Refer to MPEM REPLACEMENT procedures else-
where in this section.
If resistance value is incorrect, repair the wiring
harness/connectors between AMP connector and
the EGTS.
Replacement
Disconnect EGTS connector and remove EGTS.
Apply Loctite 518 on threads of the EGTS then
install.
Replug connector.
KNOCK SENSOR (KS)
1
F12R0QA
1. Knock sensor (KS)
Dynamic Test
Using the vehicle communication kit (VCK) with
the B.U.D.S. software, monitor the knock sensor
using the FAULTS section.
Start the engine and bring engine RPM above
4500 RPM. If no fault code occurs, the knock
sensor is good.
Otherwise, do the following.
Ensure sensor and cylinder head contact surfaces
are clean and mounting bolt and washer are cor-
rect and properly torqued down.
Check the knock sensor resistance.
Disconnect the AMP connector number 4 from
the MPEM.
Static Resistance Test
Using a multimeter, check the resistance between
terminals2and17ontheconnector.
The resistance should be approximately 5 M
.
Otherwise, check the continuity of the knock sen-
sor circuit 4-2 and 4-17.
If wiring harness is good, try a new MPEM. Refer
to MPEM REPLACEMENT procedures elsewhere
in this section.
364 smr2004-Complete Line Up
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