Ford Corsar Repair Manual page 273

IDLE SPEED/IGNITION TIMING/IDLE MIXTURE RATIO INSPECTION
p z q
Exhaust gas sensor
m I T
0
CRlaxon
SEF353H
Check exhaust gas sensor harness:
1 ) Turn off engine and disconnect battery ground
cable.
2)
Disconnect harness connector from
E.C.U.
3)
Disconnect exhaust gas sensor harness connector
and connect terminal for exhaust gas sensor
harness connector to ground with a jumping
wire.
4) Check for continuity between terminal No. 19
of E.C.U. harness connector and ground metal
on vehicle body.
(
Connect harness connector t o E.C.U. and
I
.................................
Continuity exists. O.K.
Continuity does not exist
.....................
N.G.
I
disconnect jumping wire from exhaust gas sensor.
I
O.K.
I
Note: Do not reconnect exhaust gas sensor at this
(
stage.
I
N.G.
Disconnect enaine temperature sensor harness
Repair or replace E.C.C.S. harness
and connect battery ground cable.
connector.
-
Connect a resistor
(2.5 k
) between terminals
of engine temperature sensor harness connector.
Connect battery ground cable.
I
SEF351H
4
Start engine and warm
it
up until water tem-
perature indicator points to the middle of gauge.
(Wait more than 5 minutes after starting.)
4
Race engine two or three times under no-load then
run engine at idle speed.
I
After checking CO%
1) Turn off engine.
2) Disconnect the resistor (2.5 kR)
from terminals o
engine temperature sensor harness connector.
3) Connect engine temperature sensor harness con-
nector t o engine temperature sensor.
l
N.G.