Toyota Celica Supra 1986 Service And Repair Manual page 176

Fl-74
EFI SYSTEM - Electronic Control System
CONTINUED FROM PAGE Fl-73
1
(
D
( Repair the relevent diagnostic code
)
3
~
Malfunction code(s)
lax. code 2 11
Read and record diagnostic codes (See pa9e Fl-221
I
Normal code
and code 21
Unshort terminala T and
e,
of the service connector.
And maintain engine at 2, 500 rpm.
Measure voltage between terminals
v,
and E1.
CN
sv
( Disconnect the PCV hose.
I
I
Measure voltage between terminals
o,
and
e, (
CN More than OV
( Repair {Over rich,
)
Disconnect the water temp, sensor connector and
connect resistor w ith a resfstace of 4 - 8 KO or
another coded water temp. sensor.
I
Short terminal a T end E• of the service connector.
I
Warm up the oxygen sensor w ith the engine at
2,500 rpm for opprox. 90 seconds. And
maintain engine speed at 2,500
rpm_
M easure voltage between terminals VF and E1.
CN 5V
1
Replace the oxygen sensor
)
( Repair (Over lean)